Hotels cost orders of magnitude per night than renting an apartment, largely because of the cost of cleaning them. The ones that are cheaper are the ones that t

Hotels cost orders of magnitude per night than renting an apartment, largely because of the cost of cleaning them. The ones that are cheaper are the ones that tend to suffer problems with cleanliness. Taxis currently cost orders of magnitude more than owning a car. One of the main goals of a self-driving taxi service would be to radically reduce this cost, but it would probably be too expensive to do a manual clean between trips. Maybe we just need to design cars that are self-cleaning as well.