Just saw that Canada Post is doing their "Ship One Item Free in Canada" Every Tuesday In October again this year.
https://www.canadapost.ca/cpc/en/business/shipping/free-shipping-tuesday.page?icid=display_ddn_int_k...
We'll see if we can actually use it with the looming possible strike. Last year 2 of the Tuesdays they were so busy I was unable to even get on the Shipping page - just keep timing out or crashing . The past three times I've tried to create a label on the Canada post site this month (for sales from my own site - I generally use paypal for ebay sales) the shipping tools wouldn't load / work and said it was down.