You wake up on your birthday, sunlight creeping in, and the first thing you hear is someone singing—probably off-key. You roll out of bed, maybe a little stiff, but hey, it’s your day. You open your closet. There it is: that shirt. Not just any shirt. The one that says, with a wink and a nudge, “Yep, I’m another year older. Still standing. Still me.” Birthday...