Are You Hip to Hipmunk?

Need to book a flight?  Try Hipmunk!  As a frequent traveler, I have established very specific travel rules:

1. I never fly before 9 a.m.
2. I never take a flight with more than one layover,
3. Said layover must be less than 1.5 hours long, and
3. I always try to find the best deal.

Unlike other travel websites, Hipmunk sorts flight options by "agony" level, and presents the nice short affordable flights first.  Scroll further down the list to view the nightmare flights that depart at 6:00 a.m. and take you though three snowy midwestern cities before you arrive at your final destination without your luggage.

Hipmunk also provides hotel information, ranking hotels by "ecstasy," and showing their locations on a nifty map.

Screenshots via hipmunk.com

What are your favorite travel sites?