This is inspired by the $1 coin thread, but is something I have been pondering for awhile. When is appropriate to tell the cashier to keep the change? It obviously is easier and faster to fork over a $1 bill and be on your way when purchasing a 69 cent candy bar. I am somewhat troubled between the notion of being cheap (waiting for the cashier to break open a penny roll to give me 2 cents back) and appearing rude and arrogant (I'm too important to wait for you to count out 37 cents, just let me be on my way). Any cashiers have an opinion? Does it mess up the drawer count when the customer leaves the change behind? Would you rather not have to count out change at all? Do customers look like cheapskates when they stand with outstreched hand waiting for their 7 cents back? Not a critical issue, but something I have been wondering about.