Comment on
Much of the World Stops Sending Mail to U.S.
My wife has an Etsy shop that has a large percentage of American customers. We had to change our shipper to one which would handle the tariffs on our end (cost $10 USD/mo for the new shipper account) and she raised her prices 40% across the board since we have to pay for the tariff on our end so we don't have to deal with customers refusing to pay the tariff and complaining to Etsy).
I believe Etsy is also dropping support for creating Canada Post labels, so we won't even be able to use them for shipping domestically.
EDIT: I'll still be able to use Canada Post for domestic shipments.
All this due to the elimination of the de minimus exemption.