The electrical code requires duplex receptacles in most of the locations you want so let the electrician point out those locations and then add more or make some of them quads or shift them for furniture. Tell him where your beds, desks and TV's will be.

You will want to be able to turn a light on when you enter a room and turn if off when you leave. Rooms with more than one access point will need "3-way" switches (a switch in 2 locations serving the same lights) or possibly a 4-way switch.. Pay attention to undercabinet lights and any other specialty lighting.

Coordinate the island receptacles with the cabinet fabricator. You might want a timer switch for the bathroom fan.

Don't forget outdoor lights and receptacles.

I like motion detector switches in non-walk-in closets if they have their own lights.

Think about where you charge your phones, etc..

Think about the color of the cover plates.

Think about were you want dimmer switches.

Figure out where you will have your printer. That’s the outlet I forgot in my new build. Closets for the vacuum. By the bed for charging phones. A switch to turn out lights once in bed.
Outdoor for Christmas lights if you put them up. Out back for plugging in random things if you will have a deck or lounge space. Under cabinets so you don’t ruin the backsplash with outlets. Figure out where you want TVs so they can wire for them. Fans/chandeliers

My electrician said I would love a switch by the bed for the ceiling fan so I didn’t need to get out of bed and walk across the room just before dropping off to sleep. He used three way at door and bedside. I underestimated how many outlets I would need when we built our office. Don’t forget printers, shredders, music, tv, cable box, etc. all need outlets.

I would put an outlet inside each bathroom vanity. We use an on-demand hot water pump and getting to a power source wasn't easy. Also next to the toilet if you might ever want a heated toilet seat or Toto washlet.

Add an outlet under the kitchen sink. Our new Bosch dishwasher has to be connected inside the sink cabinet rather than having the wire come up through the subfloor under the DW.

I'd like to add a few outdoor outlets too. We have 3 but 1 or 2 more would be handy.

Closet door lights open with the hinge; outlets in the eaves for Christmas lights, ability to control backyard lights from master, dimmers

I wish my builder (tract home) had put outlets on either side of the windows, instead of center/off center (mostly terribly off center) underneath the windows. :-/ With outlets flanking the window, curtains can conceal them when they aren't being used.

I also wish my builder didn't put my pantry outlet 7' off the ground. No joke. I paid for an extra outlet in the pantry, so that I could keep my vacuum plugged in (and I explained my reason for wanting a pantry outlet), and the electrician put it above the top shelf. Grrrr.

Walk-in closets are not mandated to have outlets. Even ones large enough to iron in. Pantry's always need outlets for rechargeable vacuums (at proper height).

Decide where you want kitchen outlets in backsplash (or not). Mounted on the side is a nice visual change from the norm.

Random thing - Internet router. Easy location to reboot. If internet from cable - need cable from outside to location. If using ATT, need cat5 to outside location. ATT might need power to convert from fiber to cat5. (Regional alert)

Wire for electric cars. Don't think so - test drive a Tesla and get back to me.....

Extra outlets in garage. Got an electric power washer that I want to have hooked up all the time - argh - no outlet near the garage door on the water side.

Depending on layout of house - a wire for on demand hot water at kitchen sink. (we have a small tank there - fabulous)

Not electrical related specifically, but take pictures of every wall you can. When you are drilling through drywall, it really helps to refer to a photo of the bones.

* Commode area if separate. It is nice to keep a night light in there so you don't have to turn the bright lights on in the middle of the night to use the toilet

* inside walk in pantry, storage closets, closets so you can charge any rechargeable appliances such as a cordless Vac or Roomba or if you will have dressers in the closet a charge station for in there or if you keep an ironing board set up

*. Inside bathroom drawers, cabinets or medicine cabinets so you can charge items like razors, tooth brushes out of site or keep a hair dryer plugged in and stored inside drawer.

* in the eaves of home so that you can plug Christmas lights in and not have to run extension cords

* more than one on your island. One in each side

* If you will have a front porch or back porch outlets in them.

*on stairway if you have one so you can plug in if needed a vacuum mid flight

*if you are going to have a charging drawer in your kitchen for phones and such inside a designated kitchen drawer

*in floors where a floating table will be so you can plug the lamp in directly below

* I would plan out some outdoor outlets along house if you use yard tools that are electric

Really the most important thing you can do is take your floorpan and plan out where your furniture is going to sit and if you will need an outlet there. For example where is your bed going to go? Will you have bedside chests on either side. Ideally you don't want one outlet behind the bed. You would want an outlet behind each bedside chest. Are you going to have a sideboard in the dining room or somewhere else ? Lets say you want to place two lamps on it? IS the outlet going to be to the sides of it? That will make for messy wires. Better to have an outlet behind that to plus the lights into. Will you sofa be floating with a sofa table behind it? Do you want lamps on that sofa table? Where will they plug in? You will need a floor outlet there. These are just examples of how your line of thinking can optimize your outlet layout.

I also recommend taking photos of each wall/room before drywall. If you know you will be hanging a large piece of art or any piece of art in an area ask them to place Horizontal/cross 2x4's where you estimate the art will be hanging from. This way you will always be hanging your art from a stud/wood and not need to use anchors etc. measure where they are and take a photo to document. later when you are trying to hang things and place things you will be thankful you did it and have the documentation.

We had our electrician add an outlet in the water closet of our master bath for a future bidet accessory. A couple months after moving in they went on a 50% sale so we picked one up - was glad that outlet was already there!

I wish I had asked for more outlets in my basement workshop/garage. In the main garage upstairs we added extras which I've found useful, but I forgot the basement. So think about where your tools will be used and add some extra 20 amp outlets there.

We will eventually build a shop so the electrician ran an appropriate size wire to the outside of the house with a box for us to eventually use. I'm sure none of those are the technical terms but you get the idea. If you ever want a hot tub, shop, ect it's best to run the wires it now.

He also put our freezer outlet on it's own breaker. That came in handy within 18 months of moving in.

Also cables for your TV antenna if you'll have one. All we had to do was open the attic access and plug in our attic antenna (which works really well). My husband was so happy there was no crawling around in the attic involved.

Oh and don't forget the garage! One outlet per vehicle passes code here. We added more.

I'd do two pairs of outlets behind each nightstand in your bedroom — by the time you have lamps, clocks, phone chargers, Kindle chargers, etc you can easily use up more than just two outlets on each side of the bed.

Ask for an additional garage circuit instead of just adding a couple more outlets. I had the electrician split the outlets onto two circuits in the area I planned for my sewing space. Unfortunately, it ended up being office space for hubby but that is a different story.

All good thoughts. Just one more, it is cheaper and easier to put wires in now. Lately, I have seen people in new build situations that wanted sconces in bathrooms and stairways. Get wires in estimated locations with extra wire so you can adjust. Make sure junction boxes are placed far enough away from side walls so back plates of sconce fixtures fit. Most have 6” wide plates. Last—do your homework ahead of walk down. And allow 4 hours at least to do a thorough job, depending on size of home. Very very important phase. It takes time and good prep ahead.

great ideas

The doorbell on a switch. If your sick, baby sleeping, working nights/sleeping days or you just don't want to be bothered you can shut it off.

Double switch for ceiling fans. One controls the light and one the fan.

Garage door opener on switch to shut off when you are on vacation.

One more thing and this is probably the most important. After the electrical is done but before drywall go back and make sure every single thing (and marked on the electrical plan) was done. We didn’t check and it wasn’t until after move in that we discovered we were missing outlets (we had paid for) and trying to get our builder back in to add them has been a fail.