Managing logistics has got to be the hardest part of any job. The more hectic we get the less time you have to manage our schedule, calendars, emails and to-do lists. Your computer or Mac can help, but you really need an assistant to help keep all the different projects and to do's straight.
Or you could try the EssentialPIM App. It's a consolidated personal information manager that lets you manage your calendar, to-do lists, notes, contacts, email program and password manager across multiple devices and cloud applications.
You can also get EssentialPIM for your desktop. It'll sync with your mobile device.