And Wrote..... He ships 2 chips for .49

I use a 4X6 envelope, that and 2 chips weigh 1.2 ounces so I think .72 is more like it.
Then again I have shipped chips out with a single 37 cent stamp and have never had any come back.

I get my mailers from Bargains Galore. I got a few guys to go in partners with me and bought 1000 for 119.95 Delivered. That was about 6 months ago. Works out to just under 12 cents each