My way of combating my brains “IT’S ON SALE! BUY!” tendancies is to put things I think that I need in one of my Amazon wish lists. If the price drops then I’m allowed to reconsider buying it.

I’m crashing with my in-laws right now. They politely hoarded (not tv worthy lol) 25+ years of stuff in their basement. Knowing how frugal the father in law is, if he followed this rule we’d have the basement to ourselves and not the junk! (Our room is in a small corner in the basement, the rest is just.... “stuff”)