Hey Everyone, let me start by saying, I am sure this has been covered before but, the threads I was seeing are at least 3-4 years old so I just want to make sure I am getting the most current info I can get.

I have done tons of TTM over the years but, never have done international ttms. I'd like to do some TTMs for CW's The Flash and of course filming is in Vancouver. I'll be sending 8x10s so they are bigger envelopes.

I have no problems understanding doing postage to Canada, what I need help with is the return envelope postage.

I took the envelopes up to the post office to see if they could walk me through it and they wanted me to do a customs sheet for both envelopes and it was going to cost me total 14.95. is this the typical way to do this?
what advice do you guys have for me?