You use the same login details for all accounts. You can sign up to some in your Amazon.com account, but you need to register at all of them separately.

Also you should be aware that a bunch of locales are difficult to get money out of unless you live there. Examples are UAE, India, Mexico, Brazil, Saudi Arabia etc.

Sign up for both and use Amazon's Onelink service.

When I return something (straight return, warranty repair, whatever), I'll try and throw a handful candy in a Ziplock with a 'thanks' note or something. Any early November returns make out like bandits.

I've wondered, but never got the chance to ask--do they have any policy on this? Can you keep it? Everything's already been taken care of online, so it's not like there's anything to bribe. But maybe they frown on eating customer returns ('but... but there was a note!').

Also wondered whether the typical reaction would be 'wow, candy!' or suspicion.