Hi. I'm considering getting one of those little mirrors you stick into or onto your handlebar to see what's happening behind you. I reckon that'd be really useful on the battlefield that is the australian roads and a quick alternative to the good-ol "shoulderglance".
HOWEVER, i've been told by some people that these mirrors do more damage than good, because they distort distance and don't have a full range of vision, and you tend to rely on them too much and make bad decisions etc etc.... what's with that? should i get a mirror or not?