Are you suggesting you mail the plain envelope with your padding for 33¢?

Our resident postman, might find fault and tell you the regs state an increase in price for extra thickness.

The price of mailers can be found much cheaper on ebay. Have you ever seen a person with a SHOOTING STAR? That means over 10,000 positive feedbacks.

Parrothead has 14,000. One of his main items is supplying supplies to ebayers.
Remember, the Goldminers in CA only made 14% of the profit. The rest went to the suppliers of picks, shovels, tents etc. Don't forget the ladies of the camps too.