fyi, if anyone wants to send concealed cash, if you put it in an envelope and use a delivery confirmation it will cost you 5.00 to ship the envelope, in order to not pay 5.00 for an envelope you need to place a rigid piece of cardboard inside the envelope at least 1/4 of an inch thick so it cannot go thru the first class sorter for regular envelopes,, I sent a check to someone for shipping and used delivery confirmation and since delivery confirmation is generally used for packages they have to charge you a priority rate for the envelope, they told me if I would have put a piece of rigid cardboard in the envelope quarter of an inch thick then I only had to pay the 80 cent delivery confirmation price and the first class rate for that envelope so to send 5.00 cash or check and use delivery confirmation with cardboard in it should only cost you a maximum of about 1.60 because 80 cents alone will be for the d.c. and a stamp is 44 cents but figure on at least 60 cents maybe 80 for the envelope. hope this helps, dont want anyone to get stuck luck I did at the last second and no cardboard to put in their envelope and the post office didnt happen to tell me until I had already paid for it. figures lol