I did it professionley for a couple of years
Take digi pics of all your household goods, shed, boat cars etc, including rooms of house, record all serial Nos in a word doc or spreadsheet and burn it all to cd or dvd. I carry one copy in my car, one in the wifes car and one locked in the office. Update it once a year.
Takes a lot of the problems away when dealing with insurance companies when when you are asked for a desciption by the police you can show them pics.
I used to photoghraph a lot of antique collections and even the contents of a church once
cheers
blaze