-Good year welt leather boots in general last a very long time. I have a pair of chippewa boots that have lasted me since 2016 and they’re still good. Haven’t needed to resole them, they’re very comfortable. I’ve worn them maybe 20-30% of the time(I let them rest at least a day between wears). -Straight razors and DE razors last a very long time, and they can both be significantly cheaper than regular disposable razors and electric shavers. -PIAA silicone windshield wipers (I think many silicone based wipers in general) are as BIFL as can be for windshield wipers. I think I have the same pair on my car from 2016.