What did you do to your other car(s) today?
On my E90 I vacuumed the entire car and the floormats, treated the dash, cleaned the windshield, installed a new jack pad for the drivers side (they're plastic and eventually wear out when you use a cheap jack like mine), cleaned the trunk, and swapped out the snow tires for my summer set.

I also swept out and vacuumed the garage so I wouldn't be crawling all over salt and grime.