• A prison-cell upgrade: $90 a night. In Santa Ana, California, and some other cities, nonviolent offenders can pay for a clean, quiet jail cell, without any non-paying prisoners to disturb them.
• Access to the carpool lane while driving solo: $8. Minneapolis, San Diego, Houston, Seattle, and other cities have sought to ease traffic congestion by letting solo drivers pay to drive in carpool lanes, at rates that vary according to traffic.