Do you know how many times, when I've been running on the treadmill, I've knocked my headphones out of my ears and sent my iPod crashing on the floor? Many times. A hundred thousand times, at the very least. And if I managed to not slap my player off of me, then the earbuds would start slipping out anyway, and go flapping around and neither of these things is, believe me, conducive to a productive workout that gets your heart rate up and keeps it there from healthy exercise. Though it is possible your heart rate may be elevated with rage.

That's why I'm eyeing the Sennheiser MX75 Twist-To-Fit In-Ear Stereo Sport Headphones. Not just because they have the best and longest name of any headphones ever, or come in a cheery green color that makes me happy and is totally fashion-forward, but because they're guaranteed to stay in your ears and the cords clip to your top, so that you don't get all tangled and feel very, very stupid when you have to stop the treadmill and go pick up your music player across the room. It all seems very revolutionary to me, but that might be the aftermath of the rage talking.