So here's the deal:
1. Alarms are expensive, can be set off accidentally and can be disabled by removing power sources.
2. Chains are a pain to bring around because they're so bulky; and rarely is there somewhere to chain to.
3. Wheel locks just stop your tire from turning, useless?
I've heard of people's bikes being put into vans and stolen. I'm constantly paranoid about leaving my bike anywhere too public.
What's everyone else doing? Is it working? Is a wheel lock pointless?