If you find yourself scribbling notes on little pieces of paper you probably, like me, end up inevitably asking yourself "where the hell did I put that damn thing!"
I realised years ago that despite liking the 'feel' of putting pen to paper (and still using paper a lot for free-form planning) having a virtual notebook was the safest way to keep everything ordered and where I knew I could find it.
But for me, the simplicity and durability of Google Keep make it the hands down winner.
When you need a simple and effective Note Taking app, you can't go past Google Keep.
Try Keep here: https://www.google.com/keep/
Learn more about productivity with the Time Rich Practice course: a business course specifically for health and fitness professionals. http://www.holisticperformance.ac.nz/time-rich-practice.html