Going back to shipping. Join "USPS "Click and ship." You make out the tag on your computer and pay for the shipping by your paypal or credit card. Priority mail and tracking included. Use the small flat rate box. Be about $6 and insurance is added to that and also signature is extra. What have you that you would prefer not to have disappear?
The boxes are free from USPS also.
~Richard
USPS online:
https://www.usps.com/ship/