Hello! I know we've got some Canadians on GC, and I'm hoping that y'all can help me out.
I'm in the process of addressing wedding invitations, and my fiance's dad asked me to include some Canadian friends of his to the guest list. Can any of you tell me how much postage I should put on these invitations in order for them to make it to Ontario? I know the price is higher because it's going internationally, but I have no idea how
much higher.
Also, I need to put postage on the response cards so that these folks can RSVP back to us, but I seriously doubt if a USA stamp will work in Canada.

Is there any way for me to buy some Canadian stamps for these response cards here in the USA? I think that I have only 3 Canadian invites to send out, so I don't really need a ton of stamps.
Thanks in advance, everyone.