Android now accounts for the vast majority of commercial smartphone shipments, according to market intelligence firm IDC, with more than two-thirds of all global enterprise-oriented purchases in the first quarter of 2017. Out of the box, though, a typical Android phone is anything but optimized for productivity.Power up most popular phones, and you’ll find ineffective home screens, mediocre keyboards and all sorts of untapped potential. But all it takes is a little tweaking to go from unrefined gizmo to finely tuned work companion.