ive done this for myself without really thinking about it lol but yeah i totally agree if you budget for the mistakes you end up saving tons of money in a weird backwards kinda way     one thing ive done that has helped was to become a coupon queen it helps me plan my dinners for the week and i have managed to get a bunch it stuff for free since covid lockdowns started in march i have managed to get 7 of the last 10 boxes of butter for free i baked a lot which is why i went through that much butter   for a while i just focused on the grocery store i live closest to and practiced making a habit of looking at the weekly ad flyer when it came out each week id include a new store once i was able to form the habit with the previous one    now my friends all text me for coupons lol