Pant legs can be a real drag, especially when you're trying to perfect the proper length. Go too long and you look like you're drowning in cloth. On the flip side, there's no bigger fashion faux paus than donning those highwaters so short you look as if you're preparing for a flood. Somewhere therein lies the happy medium. So how long is too long and how short is too short? One rule of thumb is that pants...