1. talc tire
2. lightly inflate tube (just enough to maintain a semblance of shape)
3. fit tube into tire (it is declasse to orient the valve in an area other than directly below the psi instructions on the tire)
4. insert valve through valve hole in rim
5. work one side of tire's bead completely onto the rim, starting nearest the valve so that the final bit of bead to go on will be 180 degrees opposite the valve. Depending upon a variety of factors, you may have to let a bit of air out of the tube at this point, but don't let so much air out that pinching of the tube against the bead and the rim starts becoming a nuisance. If you have problems at this point, get the bead as completely onto the rim as you can, then turn the rim around so that the side you're working is away from you, then use the meaty part of your palms (closest to your wrists) in concert to wrench the final part of the bead on. I find placing the rim on the ground gives me great leverage.
6. let the remaining air out of the tube
7. turn the rim so the other bead to be put on is facing you
8. start working it onto the rim, starting at the valve and trying your best to really tuck it behind the rimhook
9. Once I check over the tube and make sure none of it is bound up between the bead and the rim, I let all the air I can out of it, face the side that has to be cranked over onto the rim towards me (at 12:00 position, if you will), put the 6:00 position against my stomach or against the floor, and then using the pad of palm flesh right below the first set of knuckle joints, I CRANK LIKE HOLY HELL with both hands up and over to the opposite side of the rim... usually you can get it to pop on if momentum is on your side, but sometimes it can be a real bear!