|I just discovered another use for the 1/2" Scotch Magic Tape in your notions drawer. It's the perfect size to stand in for welt pockets on a pants or jacket project. Simply take a 5" or 5.5" length and position it on your garment until you've found the right spot. The Pants for Real People book recommends you pin strips of paper, but I think Scotch Tape is easier and better.
Incidentally, if you're having trouble finding 1/2" Scotch Magic Tape, you can always buy it on ebay. A few months ago I ordered a dozen rolls at a very good price so I'd never run out.