You could take advantage of Parkinson's Law using the following:

http://www.stevepavlina.com/blog/2004/10/timeboxing/

You could also take a gander at the 4-Hour Work Week, even if you're not interested in working for 4 hours a week, he lists a lot of great productivity tips in there such as, indeed, limiting your working time to a certain schedule, for some reason your mind then gets the idea that working time is limited and will respond to the scarcity by taking full advantage of it. I've found this one to be particularly helpful.

Thanks for mentioning the mind projection fallacy, I've written about it before on my blog but never realized it had a name. I've used this phenomenological fact to help me guide my emotions towards happiness but recognizing that the "problem" or "frustrating" aspects of something are in my own mind, and not in the world, and that I'd rather be happy.

Anyhoo, good luck! Hope this helps! Pavlina has a lot of other good articles on productivity, such as here:

http://www.stevepavlina.com/articles/

Enjoy!