I always do my own 5 wheel alignments. Never trusted anyone else to get it straight...
I set the steering wheel straight (engine running, wiggle it around a bit at center), stretch a chalk line from rear tire tread across the rear sidewall to the front sidewall to check toe in/toe out. Adjust outer tie-rods as necessary.
If your front end is in good condition it's really as simple as that. I get great mileage from my tires and we can let go of the steering wheel at 130km/h!
1999 Caravan LE, 3.3L, 300,000KM
2005 Saturn Vue AWD (Honda J35 3.5 V-TEC 260HP) 216,000KM
1982 Suzuki Katana,(ported/shaved head,11:1,4in1,KNre-cal/filters,cam,120HP)