I’d heard stories about excessive postage when using postal outlets but today I’m believing it!
Went to 7-11 postal outlet today to mail a CD to Haida Gwaii. It was in a padded envelope, sold at the post office and made for a CD (8" x 7 “x 1/2”). Clerk took out a measuring tape and said it had to go as a parcel and would cost $9.96 regular mail, nearly $25 express!! I thought “ridiculous” and went across to the post office. Clerk there slipped the envelope through a plastic slot thing and said it was regular mail and sent it off for $2.20.
Not sure how outlets are paid, commission/percentage of sales or what, but this p’d me off! 7-11 may be more convenient for mail if you are there anyway for gas etc. but woudl suggest using the post office for parcels or odd sized envelopes.