There are about 19 grease points/fittings that are supposed to be greased every 1,000 miles (4 of which are the king pin grease points). I do all the grease points (including the brake/clutch pedal shaft, of course) once a year when I get the truck inspected in the Spring.
Turn the distributor grease cup and check transmission and rear-end levels.
It's been about 9,,000 miles since I packed the wheel bearings, so that gets done this year.
Tune-up, including valve lash this year, and maybe adjust the steering gear.
It it supposed to be a good idea to change the oil before winter (hibernation time for my truck). Change the oil and run the engine until it is warmed-up - this supposedly reduces the amount of acids in the oil (maybe not a big deal with modern oils?).