Originally Posted by
NYCommuter
I've found that sometimes, but not always, booking just a day or two in advance, oddly, can be much cheaper than booking far in advance.
Not odd at all, they realize that there is excess capacity and any revenue is better than none. I usually book when I think I'll need a car, then starting 2 weeks prior, check the rates regularly especially on Tuesday when the last min specials are loaded. More often than not, I'm able to lower the cost.