I'd try and plan a few things in on at least one day so you have things to look forward to. Catching up with friends, going out etc. I find it's good to leave some time to yourself so you can relax but others like to keep as busy as possible.
If you go to the gym or exercise, allow time for that as well as any life laundry you need to do.
I think the key to a good weekend is to have an idea of what you want to do but let plans change as that is when you have the best time.
Hope that helps