Montana is great for many reasons. When you pay your car registration, they add on a $4 fee to cover the state parks. So, when you go to any MT state parks, with your registered vehicle, it's free. Free is in our budget. (My brother M would point out at this point that it's not free since we did pay the $4 originally.)
We went to Pictograph Cave this past weekend.
It was fun to get out and just relax. Afterwards the kids helped me clean out the overgrown bushes and weeds in our yard.