I have been commuting a couple time a week on my bike to a park and ride. Last week I saw that my new kriptonite lock had a bunch of scratches on it and my bike frame (looked like someone was banging on it with a hammer). I have added a second 1" thick cable lock to detour thief's. How do you lock up your bike? What lock do you use?

P.S. commuting on my bike has been the best choice I have made in a long time