AVIS is offering 250 bonus AAdvantage miles per day for car rentals. This one is good through the end of 2012.
There’s a discount code that goes with it as well. A couple random checks yielded some rates that were the same without the discount code, but I did have one come up higher when I plugged in the code. So, make sure to double-check before you use the code just to be sure.
This isn’t as good as the 3,000 miles for a 1-day rental offer this summer, but it beats a sharp stick in the eye.