Hi! I'm Richard, new guy around

. I've been playing with electronics and microcontrollers for about a year, but I never actually built anything mechanical, or moving, for that matter.
Recently i've bought some wheels and i've done some dumpster diving, where i've got a bunch of motors (mostly tape-recorder type). I'm thinking of a method of attachingthe wheels to the motors, but I can't find any. The main site suggested using superglue, but I intend to use the wheels and motors at some later point.
I also think that at I'll use some reduction mechanism, since these little guys spin fast, but have little torque. So I'll probably wnat to use the reduction mechanism too, which are not really cheap.
Anyway, can anyone point me to some graphics explaining how to fasten wheels to a spinning axle? (either from a motor, a reduction, or anything else that will make the axle turn) ? I can't figure it out by myself.