You usually get BOGO for half price in my experience. The trick is that you walk in for that BOGO and buy a bunch of extra shit.
Maybe I’m privileged in that I grew up with a Depression area mom. That woman had no idea dad made real money and shopped her ass off. Only one or two stores on grocery day, but I saw her cut a bill in half with coupons. 2-3 times a week she’s get a rebate check for a buck or three (in 80s money!). And nothing was bought at full price.
I joke, but having the time to whittle the bills like that truly is a privilege.