This is a test of commonsense. Complete the next sentence:

How to count money fast
Separate your stacks by denomination.
For quick counting, the first thing you should do is create a stack of all of your 1s, all of your 5s, all of your 10s, all of your 20s, and so on. Gather all of your bills into one big stack and then go through it one bill at a time and put each one in the stack with its respective denomination.
Adjust the bills so that they're all facing the same direction. Do this while or after you separate your bills into different stacks.