For all the other stupid things I often do, I've found ways to boobytrap myself. For example keeping my wallet on the floor where the door opens - I can't help but stumble on it when I leave the house. But here's an electronics parts problem that has me stumped.
I sometimes accidently throw out IR LEDs as "nonworking" since they don't visibly glow when tested. How can I prevent myself from doing that, at least to force myself to reconsider and remember there's such a thing as IR?