Careful with this one.
If you're the kind of person that ALWAYS respects a deadline, and you make yourself a slave to your word, and ALWAYS keep promises, NO MATTER WHAT, then this can be used by you. If not, be really careful with it.
Okay, I see this a lot. You've got something that could pay huge results, a really expansive cool project. But it's not urgent.
Or, heck, it doesn't have to be a big thing. Anything that would be great to get done, but there are no external repercussions if you don't do it.
Sometimes, I do the non-urgent stuff first. I figure I'll burn midnight oil and push myself past tiredness and exhaustion to keep my word, but I'm not as likely to do that with something I could put off for "just another day."
So, I do that sometimes. The important stuff first, even though it puts me under a time crush with the other stuff.
It's kinda risky. Be careful with it. But if you've got the right temperament, this might help you get a lot more done. Maybe. Careful, though.