I came across the PDF file “iCloud Mastered” produced by MacLife Magazine. If you are not using iCloud with your Mac and iOS devices, I recommend reading through this to see what you are missing. Even if you are using iCloud, taking a few minutes to read the four page document may be worth your time.
I use iCloud to sync and share files between my Mac Mini, MacBook Pro, iPad and iPhone. I find it extremely useful, particularly when I am traveling away from home.