I've used it many times, just offer ridiculous low prices and keep adding to you offer until you get accepted. I stayed in a $400 a night hotel for $140 a night!!

I've used priceline for hotels a bunch of times. Just offer something really low, if it doesn't work, offer a little more. Keep trying until you get to an amount that you don't want to pay more than.

Yeah, many times, but I have been unsuccessful at it recently due to it not accepting my offers... Lately I've been finding better deals on kayak.com for airfare and hotwire.com for hotels

LOL, you are the man...

I haven't booked through Priceline before, but usually if I try to half whatever price a similar ticket is going for it doesn't work...