I'm selectively LBMM. Like shoes.....You only get one pair of feet, and they have to last a lifetime, so I treat them
VERY well.....and I'm not afraid to pay for quality footwear. Also tools & fasteners (nuts, bolt, screws. etc.)......I've had enough busted knuckles from cheapo tools & fasteners breaking at the most inopportune time to last me a lifetime.....now only Craftsman, S&K, Snap-On, and that sort of breed for tools....and only Lawson or equivalent for fasteners.
And I'll usually buy generic or store-brand cereals & canned goods, and that sort of thing, and many times meat from the 'rotten' meat case.....but even then, I only buy quality 'rotten' meat. Some of the local grocery stores sell meat that isn't fit for starving, ravenous wolves, because it's of such poor quality. But my local butcher shop a few blocks away always has the absolute best quality meats.....you pay premium price for some it, but I've never gotten a steak, roast, or anything else with even the tiniest piece of gristle in it....never. Another thing is that they cut and trim to order....they'll trim off as much or as little excess fat as you prefer.....
BEFORE they weigh & price it. Plus, they usually have some pretty good deals on some of their homemade things like the different sausages, brats, Italian beef, BBQ's, and salads.
So for shoes, tools & fasteners, and meat, I'll ditch my LBMM ways, and spend a bit more for quality. Most everything else is negotiable.