Several years ago I bought 2 cookies at a stand and gave the guy $5.00 for a 2.37 transaction. The cash register was broken and this poor guy was clueless what to do. He stood at the register and mumbled for a few seconds, went in the back to see if somebody there could help him and then tried to figure it out with pencil and paper. I finally had to help him figure out what change to give me back. Had the same thing happen at the grocery store a couple of years ago. I cashier part time and always count the change back the old fashioned way. I alwasy get comments about it...its a lost art.