Frugal and Environmentally Good Dryer Sheets

I recently learned about something that is frugal and also environmetally good/sound. It involves taking clean rags (or cut them into sheets) and put a small amount of liquid fabric softener on them. Then, just throw them into the dryer like you do the regular dryer sheets. Unfortunately, the dryer sheets that you buy at the store are not good for the environment. So, there you go, good for the wallet and good for the environment.