Here's an idea for cars.
How many people /don't/ smoke in their cars? And yet all cars come with at least one ashtray, which are ill suited to other uses - they're too small for litter, too fiddly for small change etc. Most ashtrays pop out if you put your fingers inside (a clean one for preference) and pull, and generally the housing pops out, too.
So, I propose that car makers provide an alternative fitting, loose in the glovebox or boot when you buy the car. It'd replace the ashtray/lighter unit with something more useful. A decent array of power sockets, for example, with the remaining space having a rechargeable torch or a pop-out mirror or some other handy gadget. Maybe a phone station or a trib fubulator. Who knows!