Hack your commute: Make a life log

Many users of Fitbit and other life-tracking gadgets will have experienced the rush of satisfaction at their new acquisition, followed by the slow realisation that the data you have collected is entirely pointless, and ultimately the dejected resignation that it won’t, in fact, change your life.
But all marketers should know by now that the best way to effect a change in any given variable is to track how it trends over time and understand the factors that govern it. And as they should als