I keep a heavy chain lock at work in the bike lock up. Works great. Unless I forget my keys... Besides there are a hell of a lot nicer bikes than my roadie (including a Full Carbon Issac) and they are still there in the afternoons. I have no quams placing either the road bike or the hybrid in there. (the fact it's hospital staff key coded area makes me feel safer too)

As for the rest of the time I don't really need to lock up my bike. I take a quick spin down to the post office where it's all glass and can see my baby from the counter or line up. And both pools closest to me have Tri racks so there's no need to lock em up. The cafeterias I go to after group rides have plenty of spots to store bikes so I'm not too concerned.