This goal has the following fine print specified by m:
The broader point is to avoid doing unimportant things until I've done my most important thing for that day. But from beeminder's perspective it's just a mustdo task. I've decided that if I fail to define such a task by the time this hits zero, that's a fail, not an "oops, whatever".
Inspired and informed by: http://www.amazon.com/Eat-That-Frog-Great-Procrastinating/dp/1576754227