In what sense are protist primitive & in what sense are they advanced? You can only upload files of type PNG, JPG or JPEG. 2  You can only upload files of type 3GP, 3GPP, MP4, MOV, AVI, MPG, MPEG or RM. 3  You can only upload photos smaller than 5 MB. 4  You can only upload videos smaller than 600 MB. 5  You can only upload a photo (png, jpg, jpeg) or video (3gp, 3gpp, mp4, mov, avi, mpg, mpeg, rm).
In answer to your question, you can use a Forever stamp, but it won't be enough on its own. The cost of a US Forever stamp is 49 cents, while the cost of a letter to Canada is $1.20. USPS also sells a Global Forever stamp, as others have noted. You can certainly slap one of those on a letter to Canada.
Canada Post to hike stamp prices to 90 cents next year. Blaming a steep drop in mail volumes, Canada Post says it has to raise domestic stamps to 90 cents, up from 85 cents. In 2014, Canada Post says it only handled 3.6 billion letters, down from 5 billion in 2006. (Ryan Remiorz / THE CANADIAN PRESS FILE PRESS) By Vanessa LuBusiness reporter.