I'll add another goodie.
Nobody but NOBODY knows how to correctly count change back anymore. If the register could not do it for them, they would be LOST. You are supposed to COUNT CHANGE BACK from the bill that was given.
Oh and don't try giving them rounding it up to keep from getting change back. Smoke will come out of their ears.
Also EVEN AT THE BANK no one EVER gives you bills turned the same way. I have gotten bill right from the bank where every other bill is a different direction with a different side facing up.
There IS a right way to handle money.