How can I work out at his house?

Hello. I need to figure out ways that I can work out at my fathers. Him and my mom are seperated and he lives with his gf.. You know, that whole awkward situation lol. So I have to go stay at his house for a week... And I really DO NOT feel comfortable there... And his gf doesn't really welcome me.. So I just stay in my room, reading, on the computer or whatever. Buti need to get some workouts in!! I planned I can go for runs because I always go for walks finger out of the house. But I was trying to think of things I could do in my room. Nothing involving to much jumping or anything because im abovethe dining room so the chandelier starts Banging around. :(. Anyways help me :) Heehe.