two observations

after midnight:

1. the radio stations play fewer commercials. there's generally no dj on the clock, so really there's very little talk at night. it's nice. once upon an adolescent time, i had bad bouts with insomnia and would listen to the radio as i lay awake in the middle of the night. my favorite station had a dj then, and he played the best music. i wrote him an e-mail to tell him that, and he sent me back a thank you.

2. the air conditioning at kroger -- not one particular kroger, every kroger i've ever been in at night -- works a little too well.