She got the hang of it within a week. This week, she's been taking her afternoon naps without her diaper too. And thankfully there hasn't been any accidents (Yippee!! No need to change any sheets.. whew!) She even knows how to tell us "Sarah is a big girl now. Sarah no need to wear diaper anymore".
Here's Sarah wearing her own shorts after pee-pee time.
Note the logo is upside-down; waistband is through her left leg.