Stair Ball?

The little guy recently figured out that he could throw a ball up the stairs and catch it on its way back down. I'm a HUGE fan of this, because it means he can play catch by himself (I'm a terrible mother, I know). He was on a roll today!

He just started catching the ball not too long ago, and the first time he caught it today he'd run over and say "I caught it! I've only caught 10 balls my entire life!" The second time he ran over and said "I caught it! I've only caught 21 balls my entire life!" By the third time, he was up to 27. This kid.