If you’re looking for a last minute thing to do, you
really ought to drop over at Their raison d’etre is to provide everything
you need for a last-minute weekend getaway. They provide the ideas and then bookings can be as early as three hours
before departure.

Site59 is in cahoots with numerous partner hotels,
airlines and car-rental companies as well as general tarvel sites so that you can hone your weekend down to the
grittiest detail. The deals come from last-minute inventories or services that would otherwise go unsold, and they
compile packages in specific categories like "Under $250," "Tropical," or "Vegas/Casino."
I think they were sold recently to a big coporation, so maybe things will change, but for now, I like them quite a bit.