I had a feeling IJG had learned to roll from his back to tummy based on the way I found him in his crib yesterday morning and after his nap. Then, in the afternoon, we were playing on the floor and he rolled right over. By evening he wouldn't do anything but roll over.
Here's a video of IJG giggling with daddy and rolling from back to tummy last night.
Here he is this morning. I used to put him under his play gym, on his back, while I got ready in the morning and knew he couldn't go anywhere. I had a feeling it wouldn't work this morning. I no longer have a stationary baby!