repack ='s take your bike to the LBS, pay them $x to do a full tune-up (at least once/year).
Otherwise, just lube and wipe off the chain as suggested, a little cosmetic rust on the chain plates never hurt nuthin.
You could buy onea those $20 or so chain scrubbers and some degreaser, and clean the chain every so often too. It's a pretty cheap and painless way to do some good maintenance.
Take off the wheels, wipe down the rims to get the brake pad residue off.
If the pads are worn, replace 'em. If not, then use some sandpaper to take the glaze off, they'll work better than new once ya do that.
PS - Davis was voted one of the best bike cities in the US in the latest Bicycling rag. Congrats!