Sometimes there are days when I am tired and it's hard to actively play with my kids. I really like doing quiet things on those days - like reading books. However, I have little boys and they don't always like to sit still and read books. So, there are a couple games that I use on "tired mommy" days.
First is "Animal Imitation" (like the name? I just made it up :). What you do is have your child/ren lay on the floor with the light off, then you tell them when you turn the light on they have to act like a ____ (insert animal here). We especially like odd animals like worms; be creative! I leave the light on for a couple minutes and then when I turn it off they have to stop what they are doing, lay down and quietly wait for the next animal. It's a great game because mom doesn't have to move much, the kids get to practice their animals, and get lots of energy out!
I also like "Statues". I didn't come up with this game, but I don't remember where I saw it. Basically the idea is to play music and have your kids dance. When the music stops they have to freeze into a statue. It's is REALLY funny to see what "cool" poses kids come up with :)
I hope this helps some of you with your own "tired mommy" days!