I have a cool, faux black leather trench coat that I wear when the weather isn't too bad. It has a bazillion of these buttons: a long row up each cuff and lots of them in front. They fall off constantly.
Any time I'm wearing the coat, I have to attune my bat senses to the faint "clink" of a metal button hitting the floor. At any given time, I have at least one of these buttons in my purse and a couple more scattered between my office and home desks, all waiting to be sewn back on when I get out my mending kit.
It's still a rad coat, though. Especially if you don't know I got it at Hot Topic. Heh.