Most of busy person's always failed to set there schedule. A burden schedule can't gives you to freedom every time. That kind of people need to pay extra attentions to there schedule and set there works in simple and great manners.
CloudCal is the only free calendar app that consolidates all your Google and Microsoft calendars in one monthly view that gives you an instant overview of your availability along with your Evernote,
This is such a nice a great and helping for people. Good luck.