Mead #10 Envelopes, Press-It Seal-It, 50 for $1.59 at Amazon

If you want #10 press-and-seal envelopes cheap, 50 for $1.59 at Amazon. Same price that was a slickdeal last month.
Mead #10 Envelopes, Press-It Seal-It, White, 50/Box (75024)
If you have amazon prime you can get a $1 digital credit for choosing no rush shipping.