When I looked into the SP archives I saw that there was a letter dated June 27, 1978 and the cost of the package to send was $1.85. And you have to realize that the boxes were much bigger back then. They were complaining back then that the cost of fabric was about the cost of the hourly wage. I guess things haven't changed much.
I like the idea of a gift card, too, but, then this would end up being the monthly gift card swap! LOL
With postage as high as it is, there still are 21 participants this month so hopefully we still have some momentum!