"all the Ubers I've taken have notes taped up in the back stating the driver expects to be tipped (in cash)." It would annoy me to no end, and I would be surpr

"all the Ubers I've taken have notes taped up in the back stating the driver expects to be tipped (in cash)." It would annoy me to no end, and I would be surprised if Uber would have been cool with that before now.