my first trip i overpacked too:


my quick list of what I pack:

• map of area or iphone
• weather appropriate clothing for one day (maybe even wear the same stuff the second day)
• sleeping bag, pad, pillow
• tent (or tarp)
• tool kit
• bowl, cup, spoon, fork
• stove and gear for making coffee and oatmeal
• sometimes we pick up take out or go to a grocery store near the end of the trip. or we pack way to much food and carry it the whole way. i've done both.
• maybe a camp towel and swim trunks if that makes sense.
• camera
• waterproof panniers to tick the beer and ice in when you get to the destination!

BTW, here's rivendell's list, which I just noticed is pretty much the same as mine.
http://www.rivbike.com/article/bike_..._one_night_out