Try push-ups and hang-ups at home once per day. You have a floor, so push-ups are always available. Anything strong enough above-head will do for hang-ups: A st

Try push-ups and hang-ups at home once per day. You have a floor, so push-ups are always available. Anything strong enough above-head will do for hang-ups: A staircase, with overhead steps you can grab hold off or a horizontal beam. If your landlord is fine with it, you can install a hang-up bar in a doorway.