And some of these cleaning people are just so green, they’ve even got green fingers. But for many first-timers; what does that even mean. Well, if someone has got green fingers, it means that he or she has got a real passion for gardening. And this is also something that green janitorial services in Pittsburgh, PA could get their fingers into if you ask them nicely. Indeed, the range of tasks that commercial janitors are getting into these days appears…