I'll be the first one to admit that I'm not fond of Hotel Room Service when i'm away and the room is full of loose camera equipment. You can easily place a lock on a roller bag, but what do you do if you're just traveling with a backpack?
In any situation you may have to leave your camera bag or backpack behind, Chris writes in and shares with us this Anti-Theft product from PacSafe. The netting slips over your bag or backpack and is weaved tight enough so that a small lens can't easily be slipped through. Once placed over your bag, a cable can be locked down to a stationary fixture (much like a bike lock). It's not a perfect solution, but it provides a little 'peace of mind'. You can find these products via Amazon (click here)
PacSafe Anti-Theft Bag Lock and BackPack Protector