It varies wildly whether you will have to sign when using a credit card, and where and what size of purchase requires it. Some places, I have to sign for a $0.

It varies wildly whether you will have to sign when using a credit card, and where and what size of purchase requires it. Some places, I have to sign for a $0.99 pack of gum, other places I can buy $200 worth of groceries without a signature. Sometimes it's even different at the same places day to day.