Re: http://nexus404.com/Blog/2007/04/15/clever-multi-tool-hammer /
I have something similar, http://www.brazilwear.net/mt505.html .
Got it as a gift.
I try to remember to grab it whenever I climb a ladder, so when I
discover a nail that's popped up, etc, I don't need to climb all the
way down the ladder, grab the tool, and climb all the way back up.