If someone cleaned out your shop or it burnt down would you remember everything in your shop? The answer is no, I have a friend who had this experience and six months later after all the insurance had been settled he was still regretting that he had not claimed everything as every time he did a new job he was short a tool or two. My advice is to take photos and list everything, especially if you live in a theft prone area. My New Year resolution is to take my laptop out there and sit down and list everything, it should only take a few days to complete.