Having just noted that there is a costco relatively near me, I'm curious as to their selection of American products. I've heard hints that it's pretty good, but can a member give a good run-down? Particularly looking at things outside the norm - I can get Oreos or marshmallow fluff (something you don't get on the West Coast, by the way) in a lot of places.
Also, how strict are they on memberships? I can always just get one sent to my US address, but I'd prefer the quicker route of applying in the UK.
Cheers.