We went to The Woodlands Children's Museum. I liked how it was an open space and the kids could run around interacting with each area but I didn't find it was really a museum.
It was more of dramatic play but I am ok with that. It only cost $5 per person to get in for all day.
On the way home, I realized that I need to push all the "needs to be done ASAP" out of my head. My son won't care if the yard is nice and trimmed, if the clothes overtook the laundry room, or if I dusted today. What he will care about is the fun he had hanging out with his new little friend.