I've thought I should rent out extra bikes or something but there are days when I ride three or four different ones for different trips depending on state of charge/disrepair, number of passengers or shape of cargo/task. Maybe afternoon/overnight "I'm thinking of buying one" rentals... and there's no money in it unless our city would pay people to ride bikes instead of dumping truckloads of debris in the bike lanes in service of cars driving in the snow for a single day
