What is your most anal audio habit?

I don't have any meaningless anal audiophile habits. They all have a purpose!

The label orientation & the auto thread made me think about a one time incident when I worked at a tire shop while in school. As I was finishing up this guys car with 4 new tires he asked me to orient the valve stems so they would rotate together in the same position. I looked at him like he was nuts & he thought about it for a second & then figured out when he went around the first corner they would all be out of wack and simply said oh yeah, I guess that wouldn't work.

Not meant as a supercilious retort to those of you who orient your labels-you should see my tool box! (5 1/2' tall)

And I agree with Kevziek about the washing hands thing-it's something I learned before audio (photography).