Use the code SMRTRY3 to get a free 1 day rental at any Redbox inside Meijer stores. It's valid until midnight 2/18/10.
You will need to put in your credit card info, but will not be charged unless you return it late (after 9pm the next night). In that case, you'd pay $1/day for each day it's late. Check here for Redbox locations. You can use the code once per credit/debit card.