Idea: Overhead compartments for commuter buses.
They have them on fancy, long distance buses. They have them on trains. They have them on planes. They even have them on bikes but their usually front mounted baskets. Why not commuter buses?
Commuter buses are always super packed with people trying to get from one end of the bus to the other where the doors are. It is hard enough to maneuver around people never mind all the bags, purses, umbrellas, etc. that they carry with them. Overhead compartments are also fairly cheap and easy to install. It just makes sense.