For those of you who live in Utah, or perhaps in one of the other markets where RedBox can be found, listen up. RedBox, in case you aren't aware is a machine from which a person can rent DVDs at the cost of $1 a night, and you are charged an additional $1 for each night until you bring it back (up to a maximum of $25). Often they are found at McDonalds, but also they are showing up in Smith's grocery stores.
Anyhow, my point is that there's a site called insideredbox.com where you can get promotional codes that allow you to get one free night rental of one DVD. You'll have to follow a link that says something about "Looking for RedBox codes?" or you can just click here to go straight to the codes.
The redbox machine has a button right on the front page that says "Rent with a Promo Code", so its not like you are hacking the machine or anything. I'm not sure where the codes come from, but two days ago I rented two DVDs for a night with two codes and didn't have to pay anything. Great for movies you kind of wanted to see, but don't really want to pay money to see.