Answer by Atul Chaudhari:
Well these are not Inventions but Insanely Clever Innovations that need to be everywhere already..
1)Earbuds that won't tangle.
2) 360 degree wall outlets
3) Mug that catches any drips.
4) Benches that you can turn to always have a dry seat.
5) Wall outlets with USB chargers.
And the ultimate outlet would also have extension cords built into the wall.
6) Traffic lights with countdown indicators.
7) Parking garages with lights showing open spaces.
8) A bike helmet that folds up.
9) Power strips that you can expand and rotate.
10) Where was this when I was in school?
11) solar powered charger.
12) A hair brush that is easy to clean.
13) Packing tape that is easy to open.
14) Caution signs that are funny.