What silly inconvinient stuff would you outlaw if you could?
I'd outlaw sauce bottles which make getting it all out harder, especially the ones which don't have the opening at the bottom and make it impossible to put the bottle with the opening facing downwards.
Bringing your bicycle into public transportation. Ride your fucking bicycle or leave it at home. Nobody cares if you're too lazy for that steep bit on your way to work or if you don't want to walk the last bit from the station. You're using up unnecessary much space, gtfo.