For me it’s 20’s Fri. Sat. Sun. The rest of the week they’re returning the fives I gave them on Fri. Sat. and Sun.
This was the same for me. Luck might have it that I set up between Liquor store and bank . Fridays routine was cars thru drive thru, stop get adult beverage, stop for sausage or dogs. always banks 20’s. change with bank then change for weekend festivals. Once a month had one person wanted a dog, only had a Hundred, told him had to wait for did not have enough change for him, lasted 3 months . he went to bank for change after that.