Hotels on the cheap

I realized today that I needed a Plan B for my hotel stay. When I first get to the city, I'm planning to stay at Penington friends, but if they don't have a room available, I'll need a plan B.

Ask and ye shall receive! I ran across it as I was browsing through NYC blogs: http://www.newyorkmetro.com/urban/guides/nyonthecheap/travel/hotels.htm