What’s one “frugal habit” you picked up that quietly became part of your identity?

Mine started with meal prepping just to save a few bucks, but over time it changed how I think about time, food, and money. I used to see cooking as a chore, now it feels like an automatic part of my week. It’s funny how one small habit can turn into a mindset shift.

I’m curious what other frugal habits ended up sticking long term for you, maybe something that started as a small money-saving move but turned into part of who you are.