I would never send cash through the mail.

Confession: my sister found the gift card still at the bottom of her shopping bag! I asked her to get a refund for herself and forfeit the gift goods card for my birthday. I'll get a gift eventually.

Actually, CP charges for mail forwarding anywhere in Canada. I have never had to pay in the US to have my mail forwarded to another US address.
CP charges you for Hold Mail service; USPS does not.
Since I have moved several times within Canada, with the most recent relocation within last 18 months:

If one is moving to new home address, yes one pays CP a flat fee to have mail forwarded xxx days (on their web site) automatically to new address. That's been in effect for last few decades.

I am not certain what hold mail service is. But I've had packages that were held at the local postal office free, for a limited number of days after they attempted delivery. Then I pick it up, etc.


Honest, I'm not an online shopper because I like to immediately touch, feel or wear something before I buy. I dislike time wasted on returns/refunds. So I don't know the range of mail, courier problems.