I park my bike in a rack at my office (our bldg has several) that is screened from street view and has a security camera aimed at it. The camera is monitored during the day. I lock my bike to the rack using a Kryptonite NY U lock through the rear wheel and frame, with a 4-foot cable looped through the front wheel and the U-lock. I've been using this technique for 2-1/2 years with no problems so far. At least one other bike has been stolen at my building during that period, but it was parked at a more visible rack along the street and locked with a small cable.