Here's one I heard elsewhere, and isn't in the list. If you're searching for something important, search until you find one that satisfies all your requirements. Then, don't stop, keep searching until you find a better one. Then stop. This raises you maybe a whole standard deviation in quality, without taking exponential time. Works for all sorts of things. A new pair of shoes; a favorite dish in a restaurant; a spou…
Since I'm from the north, outdoor gear is a good example of this — there is no hardshell jacket in the world that ticks every box in my checklist. I've been through the lineup of both known and obscure companies item by item, from cheap shells to the ones that command a ridiculous premium. Finding this out has been a fun little hobby over a number of months, but realistically I don't think I'd be worse off if I just got the first one that was "good enough".