Unproductive? Fan of basketball or hockey, and have heard of the "plus/minus" statistic? Why not ball out yourself, with +/-?

With +/-, label sites as "positive" or "negative" depending on what sites fit your productivity (or don't). Each day, the extension will track the time you spend on each site, and provide you with an overall +/- for time spent on chrome, telling you whether you spent more time on productive, or unproductive sites.