i only bike-it to work once, maybe twice a week when there's not chance of ice.
it's 17 miles to work, 22 home if I take the low-traffic nice way. i try to be on the road by 5:30AM, so i'm up a bit before 5AM to get b'fast and get loaded. i've got a 3 mile section with lots of bad pavement and cars. i like to get through there before traffic picks up.
like somebody said, i'm a bit tired when i get home. so only a couple time a week, max.