The trouble with technology 'helping' the dumb checkout people through better technology is that it insures they will always be dumb. There was a time when cashiers could actually make change, but thanks to modern cash registers, there is no chance of that anymore. Heaven forbid you give the moron an extra penny so you get back an dime instead of a nickel and four pennies, they will have to void the sale and start over to 'figure it out'.