A: Yes. You print the label, attach it, and drop it in a Canada Post mailbox or red bin. The tracking number works immediately in the Canada Post system.
Even though you can't buy Canada Post postage through it, the "free" parts of the Pirate Ship treasure chest can still be yours in other ways: pirate ship canada post free
One of the best ways to save time and money is to avoid the post office line entirely. A: Yes
If you interpret "pirate ship canada post free" as getting physical postage for $0, you will be disappointed. Nobody offers that legally. A: Yes. You print the label
: Avoid buying expensive branded boxes at the post office.