Suggestions? See what sells. If you have a vid that makes 3 or 4 times more sales than the others, then do another one that's similar. If a particular clip doesn't sell, or sells very little, don't make another like that again.
I mean yeah, sure, in the meantime make as many different types as you can think of. Its you and the camera, so aside from your time, no huge expense. Let your imagination go wild
