DH and I did our "Triathalon Loop" - about 40 rolling miles through Montgomery and Howard Counties. Was nice - I don't think it ever got as hot as they predicted. Rode for a bit with a guy on a Bike Friday - tiny wheels! - who was pleasant to chat with. DH and I kept a running tally of friendly roadies vs. unfriendly roadies (based on whether or not they waved or said hello). Happily, the friendlies outnumbered the un's.