This is a classroom management tool that I've used for many years. It is a printable, customizable set of "bucks" or dollars to be earned and lost by the students. I keep 100 of them ready in my desk and encourage substitutes to use them, as well. Every time students do what I ask, they'll receive a "Buck." When they don't comply or need to go the restroom, they pay me a "Buck." On Friday, I hold an auction and the students purchase our classroom jobs. The highest bidder gets the job of their choice. It's a wonderful incentive and it motivates them well without costing anything to the teacher. It takes only a matter of seconds to do the auction, but the rewards for the teacher are magnificent!