OK, so I got my clips! Tried them out today in the doorway - am having a hard time finding the right spot with my foot. But clipped in and out a coupla times - then went out in the backyard to tool around, experiment with clipping my left foot in and out... Luckily, I was wearing my HELMET, because after a few passes, I was unable to clip out in time and smacked my head against the side of the house when I went down. I hit pretty hard - nauseous and unsteady afterward.
So I came back inside pretty discouraged. It's taking a lot more muscle than I thought to jerk my foot out of the clip, and the LBS put it on the loosest setting for me!
I am just realizing that my learning curve is going to be long. Too bad I'm not more coordinated!