What is an inventory?
When you start packing you must keep an itemized inventory that will be used for customs and insurance purposes.
An inventory must have the following categories on it: Name & Address, Piece Number, Quantity, Contents, and Value. You will actually need two different sets of values; one for customs and one for insurance. If you want, you can make two separate lists, one for each set of values.
Or if you prefer, you can make up one inventory that has two columns on it. The first column would be customs values and the second would be insurance values. Then all you would need to do to make a customs only set, is cut off the far right column with the insurance values.