I drink coffee throughout the morning, including before and after brushing my teeth, which makes the coffee taste flat and sweet and nutty, not horrible but definitely not right. I always hated that.
It occurred to me recently that I could just brush without toothpaste. It works! Coffee tastes pretty much normal afterward, and supposedly something like 90% of cleaning comes from the brushing, not the toothpaste.
Odd life hack, but I’ll take it.