Here's another indicator that I have unusual interests -- although, possibly shared by other woodworkers.
I'm helping my daughter (AKA ''The Girl'') making a small wooden box as a gift for my wife (AKA ''The Lady''). I have a few different sizes of nails, but they were all a little long.
So today I went to the mega hardware store and picked up three sizes -- 20mm x 1.6mm, 25mm x 1.6mm, and 30mm x 2.0mm -- to complement the other size (40mm x 2.0mm) I already have. I like having a range to choose from, and they only cost about three and a half bucks a box.
I'm guessing that ''normal'' folks don't care about having a range of nails to choose from.
They're flat heads, by the way. Box nails, I think.