A couple of time management tools:
The Pickle Jar Theory of Time Management (pdf) - an oldie but still a goodie. There are a million versions of this floating around the internets. This one is that doesn't forget that the little things count too.
Pick your big rocks carefully - you can only fit in so many.
And so a couple tools for picking the right rocks:
How to Spend The First Ten Minutes of Your Day (h/t Passive Voice) - a technique for getting focused on the right stuff, so one is not milling about spinning wheels.
Recognizing Wealth (h/t Megan McArdle) - a mom inventories her kitchen.
And to bring it back around to SFF:
Larry Correia went to GenCon and had a blast.