Share 'Sealing cable ends to keep out mud etc'

I just read this article in ccx mag regarding the subject of using heat shrink tubing to seal cable ends. Anyone done it? http://www.cxmagazine.com/gut-wrenching-mechanical-mondays-weatherproofing-cables-housing?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+CyclocrossMagazine+%28Cyclocross+Magazine%29