Starwood (SPG) just issued a promotion to get a $100 gift card from Amazon. All you need to do is stay twice at a Westin property in the US or Canada between now and May 13, 2010. You will have to checkin from Sunday to Thursday as weekend stays do not count. This shouldn’t be an issue for our readers as we’re mostly business travelers. Here’s the link to register. By the way, you’ll need to register by April 30, 2010. There is also a limit of three Amazon cards per SPG account.