Just be sure that you understand the insurance claim info. The nice clerk at the PO may take the money to insure your package for $$$$, but if the parcel is lost, you can only
claim what you have receipts for. So for instance, fabric is covered, as is long arm quilting if you used a service and got a receipt. Your time is not covered.
see
4.3 Nonpayable Claims
af.Personal time used to make hobby, craft, or similar handmade items.
http://pe.usps.com/text/dmm300/609.htm