How much postage does it usually cost to send a 9 x 12 envelope within the US, assuming that the only thing inside is a letter and another 9 x 12 envelope. Since a lot of celebrities send out 8 x 10s I'm assuming this is the best size to send?
9x12 Envelopes require two .42 cent stamps. If you include a peice of thick cardboard, it's best to apply a 3rd one to be on the safe side. {thumb2} Same goes for the SASE as well.
I always just put one $1 stamp on it. It seems to work just fine that way.
Favorite Autographs: Deanna Durbin, Josh Groban, Dr. Phil & Robin, Ann Rutherford, Zac Efron, Dick Van Dyke, and Rise Stevens Most Wanted: Kristen Stewart, Robert Pattinson, Gilmore Girls autographs. Most Recent: Mary Tyler Moore, Peter Graves, and Rise Stevens
According to the official postage website the prices are:
One ounce: 0.83
Two ounces: 1.00
I only put 0.83 on my SASE, but on the outer envelope, I would put 1.00. I send 9X12s folded inside a 6x9 and it weighs exactly one ounce (with letter). Since your envelope is bigger it should weigh more.