i wiggle my ignition key if my blower motor stops working... go figure.

I had that problem. It got worse until the blower didn't work at all. Turns out that the electrical portion of the ignition switch was the problem (part # M5050-32967). I replaced the wobbly tumbler cylinder while I was at it--I've heard that it's a very good idea to replace these when they start to get too loose, at least on the w123's.