Bodyweight Circuit Ideas?

go3gurl2go1

Hello! Just started back up with the site again, in hopes to get serious with my health and fitness. I currently don't have a gym membership (need to start shopping around), but I really enjoy going on short runs and/or doing bodyweight circuits at home. I have a few that I've looked up and some that I created, but just wanted some other people's ideas of circuits they do or some of their favorites. I like a challenge...so lay 'em on me!