Walt Mossberg, writing for Re/code:

I’m not talking about which watch face to select on any given day, or whichever particular band you chose. Those things matter, of course. But lets talk about customizing the software so you have the apps you want, where you want them; having your favorite contacts and frequently-sought info in an accessible place; and receiving a helpful number of notifications, but not so many that you want to take the thing off.

Once you’ve read Jason Snell’s piece about Apple Watch faces and complications, spend some time with Walt as he talks you through things like settings, apps, and notifications. Excellent complementary pieces.