rule #1 = do no harm

rule #2 = the angle on your shoulder, or "intuition" should be listened to

when I chop wood, if I encounter a log that gives me pause, I skip it. meaning, don't take any unnecessary risks

you don't have to ride every single day to wear the arm patch of a bike commuter :-)

just found this - lots of interesting stuff:
http://weblogs.cltv.com/news/weather...ike-commuting/