I think Tom has an article on his site that discusses this a bit, but here's mine:
1. Clean chain and minimally wipe down (or preferrably wash) bike once a week or after a particularly grimy ride. Take off the wheels, wash the tires, remove and clean the cassette, take out and clean/lube the seatpost, quill if ya got one, etc. Wash the grip tape...all that kinda stuff.
2. Under GOOD light look over the entire frame for cracks, paint bubbles, anomalies, etc. Pay close attention to carbon fiber parts. Check chain for wear (occasionally).
3. Reassemble the bike and lube appropriately. Tighten everything to spec. Don't forget things like brake cables, water bottle cages, etc. Check your cranks for wobble, make sure the pedals are on tight, lubed, etc.
This is a relatively generic (i.e. no nuts and bolts) list but it's a good start. If you are scared off by doing the wrench work, don't be. Get a starter tool set from Park, a good bike book (like ZInn) and start slow and be patient. A torque wrench is helpful also, to prevent you from trasing certain parts of the bike (I speak from experience). All told, it takes like an hour once a week to do this, and will save you untold hours simply by having a better performing bike that will last longer.
"To give less than your best is to sacrifice the gift." - Pre MattMizenko.com