I suppose it would be: do not condone procrastination. What can be done now should be done now. What can't be done now should be scheduled for a specific time in the calendar. I found, personally, that half of my time doing anything was avoiding doing the thing. Procrastination. Usually cloaked in something that I could justify if I didn't squint too hard, such as "planning" or "research", or working at a slower than necessary pace.

Also, when I blew the window for something I had scheduled, I didn't feel bad or scold myself. I rescheduled it and then looked at what caused the issue. Often, it was that I didn't schedule enough time for the prior activity, so I would know to schedule more for similar tasks in the future.

Also, bonus strategy... delegate as much as those around you will put up with.