I don’t recall how I initially stumbled into this article, but every now and then it helps me as a reminder of some fundamentals to keep in mind in order to become more productive:
lifehacker.com: 10 Lessons I Learned From A Year of Productivity by Chris Bailey
The summary of it is that Chris did an experiment for an entire year and tried all sorts of different programs and read various books and when it was all said and done, being productive simply came down to core principles: Time / Energy / Attention
This project then inspired a new website with a lot more information on the subject, with a slightly adjusted name:
Thanks so much for all the wonderful insight Chris!