Sigh.

I can tell when I've "fallen off the wagon" and haven't been commuting regularly.
I tend to forget to pack very critical things in my bag and I'm faced with a moment (or day) of panic as I'm standing there, in the locker room, ready to jump in the shower, and have a freakout, thinking, "OMG, where is my (fill in the blank)?????"

If practice makes perfect, lack of practice makes you look like an idiot.