I don't have a code to offer, but I would suggest looking at priceline or hotwire for a last minute deal. I've had great luck with priceline for boston in the past, getting great locations for $75 or so. The Intercontinental, which is a beautiful waterfront hotel, comes up a lot for about $100. Look at betterbidding.com or biddingfortravel.com to see what's been coming up lately.