There's a common workflow I use at work that involves taking the default 10 times before inputting what I need to use. I do double shave and a haircut quickly instead of counting return presses.
Once a day, I have to press a button on my kitchen scale 4 times, to switch it from grams to fl.oz.
It seems that the the fastest tempo at which one can press the button 4 times... matches the "1-2-3-4" at the start of the song people might know from "JK Wedding Entrance Dance". https://www.youtube.com/watch?v=4-94JhLEiN0
