re: #12 Single-handed sailor
I was a traffic signal dude, I preferred vuarnet nautilux blue blocking sunglasses. They totally mess up color recognition, really bad when you are working with about 32 different color combinations of wire. I learned not to cut wires until I verified the color without my glasses.
edited
32? I learned the “Bad Boys Rape Our Young Girls…” mnemonic for resistors, but 32 colors?