National Foun­da­tion for Can­cer Research is offer­ing free mail­ing labels.  Inter­es­tigly, it says “Offer avail­able for U.S. addresses only” but then it has a Province field with all the Cana­dian provinces and the coun­try selected is Canada. I’ll give it a try to see if they come.

Try to get your free mail­ing labels here.