Do you draw or sketch your designs?

Before you make a project, whether it be jewelry, or some other project, do you draw out your design first. I dont, because I am not really artistic that way. I see something in my mind, that I will like, and then I create it. It doesnt always turn out the way I envision it. Sometimes it is even better. So how do you design your creations. Imagination, thought, sketchings or drawings?