Hi all-
 
Erik D S from The Recyclery (Chicago/Evanston) here.  We're working on making up some laminated spoke cards for our wheel room this winter... the idea being to have an easy, reusable (dry erase marker) id system for wheels that can tell any major features, defects, etc. so that people don't have to go traipsing back and forth to the wheel room to find something that both fits a fork AND spins.
 
some ideas i've had are:
diameter
ideal tire width range (c/o chart by sheldon brown)
hub/locknut-locknut width
# of cogs (for rear wheels)
other notes (things that need tightening, loosening, truing, rounding, overhauling, missing spokes, oddsized axles, rare alloys, whatever)
 
 have any other shops done this?  if so, what information have you found relevant to put on the cards?  i'd like to keep it simple enough to make a volunteer/work trade task without superfluous options of information--a nice volunteer/work trade task.
 
Thats all!
 
thanks,
 
erik