Great topic and funny but true!
Here is one of mine. Your working on an assembly, you don't seem to have a problem taking it apart but when you go to put it back together your finger reach seems much shorter and getting those screws back in with the wiring harness in the way is much harder, you try and drop screw, no problem you find it, so you try a different route, and drop screw again, but this time it rolls under the transformer panel and you have to find a piece of wire to fish it out, then you spend a few minutes planning your next attack like Wile E Coyote, only two drop screw again and again.
Pro tip, get screw starting screw drivers and save your sanity, or in a pinch take that 14 gauge wire you used in previous step of fishing for the lost screw and wrap it around screw allowing you to guide into position more easily.
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