Maureen: You should never use Windex on stainless steel!! Ammonia based window cleaners are terrible for stainless. Yes, they get the stuff off. Unfortunately though, the ammonia also etches the metal, ultimately resulting in a dull, almost haze-like sheen rather than a shine. Use stainless steel cleaner if you insist on buying a specific product for cleaning the appliances. Or, if you prefer to not waste your money, all you really need is dish soap, a sponge, and two towels. The first towel is to remove the water after you've cleaned with the soft sponge. The second towel, the perfectly dry one, is to immediately buff it. The dry towel is the key. No matter what you use to clean your stainless (or windows), immediately buffing with a perfectly dry towel is what will get rid of the streaks and give you the shine!!

Larissa: If you leave the tile, use "511 Impregnator Sealer" to seal the grout. (Home Depot now carries it.) It's nasty stuff, about the least environmentally friendly thing you'll find (so don't pour it on your houseplants... or kids...), and you'll have a lingering odor for half a day. Sounds great, right?! I hate the stuff, but it's the right stuff for the job and, as a contractor, it's my "go to" for sealing grout that's in any type of danger zone. Ideally, everyone should be re-sealing their grout at least every other year. (Manufacturers say to do it every year. That's because they want to sell you more of their product.) Clean the grout well using a plastic bristle scrub brush and let it dry completely (*important!). Pour some 511 in a small bowl and use one of those cheap 99cent natural bristle utility brushes (the wood handled paint brushes) to brush it onto the grout. (That's assuming a non-porous tile, as most subway tiles are. If you have porous tile, fill a spray bottle and mist the 511 onto the tile and then use the cheapy brush to make sure it's spread evenly. Open windows first though, wear a mask, and spray slowly so that you don't create to much mist!)

You'll notice the grout instantly turn darker, but don't freak out about it. This is because it's absorbing the liquid. It'll lighten as it dries though and go back to it's typical shade. Follow the directions on the bottle and you'll be fine. Pay attention to clean-up, (don't let it dry on the non-porous tile surface or countertop), and apply the second coat if this is the first time sealing the grout!! (When you apply the second coat, you'll likely see a lot of it turn dark again. Absorption. Absorption is bad, that's what you're trying to prevent. No absorption = no stain! If any of your grout darkens when wet (with the 511), you're not done yet! Subsequent re-sealings should only need one coat though.

As if this post wasn't long enough yet, I'd like to throw another option out there:

Mirror.

I know, crazy. But it works. Here's a kitchen I did about 8 or 9 years ago. Every square inch of backsplash around the entire kitchen is mirror. These pictures were taken last year. (This single guy is an amazing chef, lives alone, and uses this small kitchen probably 3-4 times more than a typical family of 4. Seriously!!)

Mirror is high(er) maintenance, but not nearly as bad as stainless and it will never lose it's shine. It's significantly cheaper than stainless and still gives you the silver tone that stainless gives, there just happens to also be a bit more of YOU in it as well.... haha I used 3/16" thick mirror, measured very carefully (!!), and applied it with mirror mastic. Pretty simple. And it made the entire kitchen feel much bigger! (Notice the two faucets and 4 sink bowls?? hehehe)