so, ive been wondering. im thinking about getting a new lock, cos this chain thing ive got is getting to be a little too much of a hassle, and im thinking about a mini. how do you guys use these? ive seen stuff, like on sheldonbrown etc., that suggest ways of using a mini, and i know/have seen people who just lock their frames, or their rear wheel to the frame. is there a consensus as to the most effective way to use a mini-u?