Bullet Journal
Used by 4 peoplebulletjournal.com ↗

“Todo apps are an endless point of contention for me, and I've gotten the most value, for most of my non-CRM todo needs, out of some physical notebooks and the Bullet Journal method.”
Aurynn Shaw Interview, DevOps evangelist, giver of talks, writer of software, conference junkie, profes · via Uses This 

“I use Bullet Journaling to keep track of stuff at work.”
Alice Bartlett Interview, Web developer (Financial Times), founder (Tampon Club) · via Uses This