I visited Dawson City in the Yukon last year and was surprised to see Kirkland Signature goods on sale at the general store. Didn't think to ask how they got there.
It's extremely common to zip down to Juneau to go shopping and then hop back to the Yukon. It's just a 10 hour one way trip, and when you live in the North that's not so far. Tons of people go there simply to go to Costco (which doesn't exist in the Yukon)
It's also really nice to go in winter when it's -40C/F in the Yukon (all inland) and usually right around freezing in Juneau (coastal)