Like others mention I am on the lighter cable lock plan. One thing we also do is I have a battery powered alarm. Can't even remember where I got it and not sure if it is a r-a-p-e alarm or what exactly it is for but it has a little plug/key that pops into it and when the plug/key is pulled out the alarm sounds. It was pink but I spray painted it black and on evenings I would tie it to one of our bikes and tent peg in the plug/key that was on some thin rope. That way if someone tried to cut our lock the alarm would be going off and attached to one of the bikes. The alarm is super loud and although it has never happened I figured it would wake me up and thought the thief likely would not go far with a siren on the bike.