Remounting a rear wheel and chain tension.
I got a flat in my rear wheel yesterday and proceeded to change it. This was the first time I took the rear wheel off on this bike so I was curious about remounting the wheel and getting the chaintension and wheel alignment just right. After reinstalling the wheel, I feel like the chain tension was just a little looser than before I took the wheel off. I feel like there must be an old mechanics trick to getting the rear wheel on and aligned just right the first time. Is there?
BTW, this is a single speed, freewheel bike with 700cx25 wheels.