I just did a mock-up envelope with 50 squares, lined up in two rows to fit inside a 6 X 9 envelope with a birthday card. I wrapped the squares in plastic wrap and weighed the envelope, and it came to 1 3/4 ounces @ $.71. I am going to run by the post office this AM to make sure, then buy enough stamps to take care of my mailings for the year. Now I can package up all my candies and be ready to mail! Looking forward to a year's worth of birthdays!!