How can I do want I want to do if I have no access to a gym?

Question #1: Sometime and decided to try to just work out at home for easability sake and I find I’m more likely to work out if I can just head down stairs. I have select-tech weights, allowing the weight range from 10-52.5 lbs, an adjustable incline bench and a treadmill. My quesiton is, how can…