Mine went in the mail today - double (20) fat quarters. I used a padded priority envelope for both. Around here they have the padded priority envelopes behind the counter and you have to ask for them. It was $6.10 each way because the weight was over 13 oz. Doing the online calculations on usps.com it appeared cheaper to do it this way than regular standard mail. 10 fat quarters would be, of course, less $ to mail. The envelope will need to be taken to the post office and given to a postal employee - no need to stand in line I was told since it is already stamped.