Started doing this with everything after I noticed how much better I am when I write stuff down first. Phone calls to my insurance company, talks with my kid's teacher, even texts to my sister when we're fighting. If I jot down two or three points before I open my mouth, I actually say what I mean instead of rambling for ten minutes and forgetting the main thing. It's like my brain needs the warm up or the good stuff stays stuck somewhere in the back. The blank card thing sounds annoying at first but it's really just training you to think ahead.

My old boss once told me to stop microwaving fish at my desk and I laughed it off until HR sent out a whole email about it two weeks later. Turns out that "weird" advice was just him saving me from being the office pariah, which is basically the same energy as your snack situation. Small stuff like snacks and smells really does shape how people see you, even when it feels unfair.