My workflow took an interesting (and productive) turn when I encountered Bullet Journal a month ago.
Bullet Journal promises to be nothing less than "an analog note-taking system for the digital age that helps you manage your present, record the past and plan your future".
Here's a quick video about the system:
I've been up an running with the Bullet Journal system for a month. It works for me and has replaced 3-4 different apps/workflows I was using for planning, note-taking, goal-setting, etc.
I picked up one the recommended Leuchtturm1917 notebooks on sale for $14 and my local art supply store. I highly recommend this notebook.
So far so good. I've got reliable system with Bullet Journal. Now to find some really great pens...