Wall outlets with USB chargers.
Benches that you can turn to always have a dry seat..Mug that catches any drips.
Parking garages with lights showing open spaces.
Stairs with slides.
Supermarkets with build your own 12-packs of soda.
How to stop littering.
Back pack with hood -- where was this when I was in school?
Or this solar powered charger.Subways where you can pay by recycling..USB rechargeable batteries.Caution signs that are funny.
Movie theater screens in the bathroom so you don’t miss anything.
Even better if the theater has bean bag seats.