So it's not really a crawl.
It's more of him pushing himself onto all fours and then scooting backwards. And in circles. And sideways. Every which way except forward.
I left the living room this morning for one minute. (I swear - it was only a minute!) When I left, B was on his play rug in the middle of the room surrounded by toys.
When I came back one minute later he was in the corner of the room, trying to frog-kick himself even further.
That is a span of over 10 feet.
He's on the move.
And there is no way I'm ever going to get anything done now!