When you have time, but no money

[LSUMurse]

My wife will be having surgery on Friday. I am taking 3-4 weeks off of work to help her recover. However, she's not one to have me in her face 24/7. So, I will have a lot of down time.

I'm looking for suggestions on things to do to the truck while she's sleeping, etc. The problem is with taking 3-4 weeks off of work, cash is going to be tight. I'll have a little, but not much.

So, give me some low cost suggestions to help keep me from going insane (I am not one who functions well with nothing to do).