I've paid up to $2.50 for the bubble mailer and up to $2.75 to mail. So $5.25 total. I found recently some big bubble envelopes at our hardware store on their dollar section 2 for $1 and I've been folding them in thirds. Makes for a well protected large envelope for only .50c I then wrap in clear packing tape across the seal so no one can open it easily. I need to see if they have any more. Other expensive or large quantity I use a small priority box which costs around $7.50 to $8.80 depending on distance and the priority boxes and envelopes are free. Torrey