I took a few short videos on my iPhone today of Jett climbing stairs. I apologize for the black and white video, the app on my phone had the color toggled off and the magic was happening so fast that I couldn't adjust it in time.
It's the first time Jett has voluntarily approached and climbed stairs on his own. We've practiced before on hand-made stairs fashioned from couch cushions as we don't have stairs in our house. He saw these stairs while we were miniature golfing and he conquered them with fierce enthusiasm!