Our electric toothbrush has color coded brushes for each member of the family. One toothbrush, one charger multiple users. I suspect you don't all brush your teeth at the same time.

I agree with Nancy that most things don't need to be plugged in continuously to maintain a charge. My toothbrush can go a week. Razors and trimmers should be able to last a few days.

Water pic and hair dryer can be kept under the sink (or in whatever other storage you have in the bathroom) and brought out when used, since they do not require chargers. This does require a little discipline, to actually put them away after use.

Maybe the chargers for the toothbrushes and razors can be kept elsewhere, like the bedrooms. Keep appliances on bathroom counter until charging is needed. If you are remodeling then you can install outlets in a pullout inside the vanity with storage for the chargers.

To store the actual appliance for daily use, maybe a shallow shelving unit hung on wall, or set against the wall.

If you show a picture of your bathroom, showing what type of storage you do have, you might get more help. There might be an area in your bathroom where an additional storage solution could fit.

Thank you for your ideas! I had never considered outlets inside the cabinet or vanity. I also like the idea of a narrow shelf with outlets nearby.

I would break it down. Give everyone their own basket with their own stuff in their own basket with their name on it. They can keep their stuff in their room and bring it in when needed. Or if you have a linen closet that the bins or baskets can go into to store easily.

Another idea is to find bags that can be hung on a hook easily behind the bathroom door. Label, hung and done!