How to Make a Wrench in the Exact Size You Need
by Aimée Lutkin from Lifehacker on (#3SH4S)

Have you ever encountered a bolt that doesn't quite fit your wrench? Of course you have. No matter how much pressure there is to conform, hardware bucks expectations. Here's what to do when you don't want to buy yet another special piece of equipment just to dismantle a bookshelf.