Install sidestep. CHeck your destination and prices every day. There are cross country sales from WAS all the time.
You can also sign up with yahoo for free, and they'll send you an email when the price drops to your target price.
Check air-fare.com every day. Here's the ex-WAS page:
http://www.air-fare.com/was.htmPriceline may not be any good for air travel but you can still get decent prices on hotels by bidding there. Check at biddingfortravel.com so you know what hotel you are going to end up in...BEFORE you put in the bid.
As far as rental car, you save on airport fees by staying in a hotel with a free shuttle the first night, so you don't need a rental car when you arrive. Then rent a car from Enterprise in the morning (they have free pick-up and delivery). But this only works if you are not picking up/dropping off your car on Sunday since a lot of Enterprise offices are not open on Sunday. This is because they are catering to people who are renting cars because they were in an auto accident rather than catering to travelers.
The conservation movement is a breeding ground of communists
and other subversives. We intend to clean them out,
even if it means rounding up every birdwatcher in the country.
--John Mitchell, US Attorney General 1969-72