Yesterday and today, we've been able to put Caleb down for a nap while he was still awake! He fussed for just a few minutes, and then went to sleep!
We haven't read any books on sleep training, or looked online, or anything like that, but we figure that if we can lessen his dependency on external things to get him to sleep (rocking, music, swaddling, etc.), then that's probably a good thing. I'm sure he's not fully independent--we've had to rock him to sleep a couple times today--but it's a start!
Here's our little man in a nap before church this morning.