Originally Posted by
corrado33
I generally do the seatpost collar and seatpost first so that I can mount it in the stand.
Then (with appropriate intermediate steps)
Headset
Fork
Stem/Handlebars
BB
Crankset
Brakes
Wheels
(Fenders?)
Shifters
Derailleurs
Cables/housing
Saddle
Done
I like this list because it will identify the fatal flaws pretty quickly before you spend money on other things. If it's a goner, it's good to know before you spend money on tires and a new seat.
I would add a quick check of frame alignment very near the top, near the fork on this list.
I like the idea of checking on the seatpost at the top of the list. If that's frozen, I usually would just walk away. Some others would be able to deal with it to a certainty, but I can't in my particular environment.