I went to the Valpak site that is a clearinghouse for coupons. You can plug in a zip code, and the site finds deals near you.
The most attractive coupon was for a $19.95 oil change at Auffenburg in Carbondale. That's a pretty good price.
But I wasn't completely won over by this site. It had a relatively small section of coupons, and most of them were for things that I don't need.
I suppose, if I really needed to buy something, I would try to search for coupons directly related to what I wanted.
But since I DO need an oil change, I'm going to print up this one. http://www.valpak.com/coupons/query?geo=62901