Productivity buckets, reviews, and visibility
Besides habits as a form of process-based productivity, ruthless prioritization, and limiting of work in progress (or scheduling) doing proper weekly reviews and planning has been the basis of the main GTD gains I’ve noticed the last 6 months.
I’ve started experimenting with a 3 daily slot system and a 7+1 bucket review method every week that has been unexpectedly more effective, and felt it might help others who struggle with similar problems (too much to do, a constant onslaught of new things to prioritize and do, and never enough time to do it). Plus, it involved a bit of code to help with visibility and tracking and a siple system that is portable across systems (or paper) so felt post-worthy.