Depending on the proximity of local parks, or the amount of back yard you have - you could always assemble a "farm boy" home gym consisting of;

2 30ft lengths of 3" rope
1 Large tractor tire
1 10-20lb sledge hammer
1 Keg

Find plans and assemble a chinup bar.

All that, and who needs a gym?

"An expert is a person who has made all the mistakes that can be made in a very narrow field." - Niels Bohr

"Smart people believe weird things because they are skilled at defending beliefs they arrived at for non-smart reasons." - Michael Shermer

"Fair speech may hide a foul heart." - Samwise Gamgee LOTR