if you are behind some person digging through their pockets or their purse to find the exact change, doesnt that piss you off?! i get so mad at that, and i used to be a cashier. it really doesnt save all the much time if any at all. BUT! do you do it yourself? i find that i still search for exact change if i have the time, but if i am making people behind me wait, i dont do it.