I'm not much of a cook, but when I do cook I tend to be very messy... (spills on the counter, flying chopped garlic, vegetable stalks on the floor, unwashed plates and bowls), I finally figured out a way to make my life a little bit easier.
On the Rachel Ray's show, she uses a bowl to put all the "trash" in as she preps her ingredients; instead of using a bowl, I use a plastic bag (you know those clear bags where you put your produce at the grocery store). When I am all done prepping and cooking, I just throw the bag straight to the garbage. This makes my clean up time much faster and the counter a little bit less messy (now, if I could just address my inexperienced chopping and slicing abilities).