A bit of an academic question for me right now -- I've been wearing sandals (without socks, naturally) since June, as I ride my bike to work. I brought socks and shoes into the office, but I have never worn them -- I just keep my sandals on all day long.

I used to pair up my socks after laundry, but lately I just toss all of the dark socks into the sock drawer and pull out two and wear them. The odds that someone's going to notice that I have mis-matched socks is low, and the chance that I care about this discovery is even lower. :)