It's easy to joke about the ''snot rocket,'' a.k.a. the farmer's blow. (Take it from me.) But all kidding aside, learning how to clear your nose on the run, quickly and cleanly, will make you a happier runner.
Shoes & Gear How to Cope with the Top Stressors for Runners, and too embarrassed to ask for lessons, we thought it'd be helpful to walk you through the process here, with a video.
Does Running Build Muscle, The Runner's Rule Book (Rodale, 2009). For more helpful tips (and a few laughs), you can How to Hold Your Pace Late in a Race.