Here's what he said:

"Hi,
If you are willing to have it shipped in a plain #10 envelope at standard first class rates I'll ship for $1.10. Normally I use a good quality bubble mailer ($.88 ea) and mail it priority mail ($3.50) and drive it to the post office the day the money is received 12 mi round trip @ $.335/mi ($4.02). At the $1.10 rate I drive to the PO once weekly. Hope this helps."