Many burlaries end with stolen goods being sold or pawned for a quick buck. When a pawn shop buys something, they are required to enter serial numbers in to a database with police access. If they are labled stolen, they are recovered by police and capable of being returned. Also, whoever is pawning the goods is required to show identification to associate them with the item.
With that in mind, it is a good idea to take note of serial numbers of any goods in your home. All mass produced items will have one; TV's, radios, computers, phones, ipods, etc.
Also, along the same lines. It is important to have copies of all personal information including those kept in a wallet or purse such as: ID, Credit Cards, etc.
Also, keep a copy of them in a safe place like a saftey deposit box, safe, or trusted relatives home.