A cheap shipping method with no material cost is USPS flat rate priority, Its a free bubble mailer, or box, that can hold large item's, by all means get your own supplies for small stuff, but for larger things, it's cheap and fast. $5.70 for the padded flat rate env. postage.
Go to USPS.com, make an account and order 15 of each or so, they are free and are a good thing to have IN CASE.