$100 bills are subject to much scrutiny.
Most people will accept a $20 bill, but a $50 or $100 will get the Governmental highlighter swipe.
Plus one soldier FReeper informed me that a $20USD is accepted worldwide.....just in case you decide to flee to a Country where democracy reigns.
Good advice the $20’s.
We will start storing and hiding a few $20 bills each week.
They are easy to get from the ATM. So we will just add a few extra 20’s each time we use our ATM for cash, about 4 times per month.