I'm pretty much home all day. From about noon to 5 is the best time to come by if possible. Mostly home all day on the weekends too.
I have instructions for setting one up on a Regal. Not sure if it's the same on other cars. though:
1. Close Vehicle Doors
2. Insert key into ignition and turn ON (Without Cranking Engine)
3. Turn Ignition OFF, remove the Key.
4. Press and hold driver side door lock switch in UNLOCK position.
5. Insert key into ignition, then remove. (do not turn key)
6. Repeat step 5.
7. Repeat 5 again, but leave key in ignition.
8. Release Door Lock switch. The Vehicle will sound 3 beeps to indicate program mode has been activated.
9. Press UNLOCK and LOCK buttons together on your remote and hold until you hear 2 beeps from the Vehicle. (approx 15 seconds). Remote has been programmed.
10. Repeat step 9 with up to 4 other remotes.
11. Remove key.