Peanut Shells for Weed Control

I feed all of our wildlife here in the yard. I have a feeder for peanuts for the squirrels, they make a mess with the peanut shells, so I got the bright idea of using them for weed control. I put them around the flowers, and have started using them around my vegetable plants. No more weeds, and helps keep soil warm, and takes less watering as they keep the soil from drying out!