I have heard that people are really motivated by two emotions. Anger and Excitement. For the most part, I think that is true. I mean I am the MOST productive when I am not happy about a situation or I am just beginning a new task. I would say remembering what the goal is a HUGE part of it.

When in doubt; you need a power jam. (This I am taking from Maximumfun.org) Everyone needs a power jam. I would say I have 2.

Juelz Santana - Second Coming

and
Junior Senior - Good Girl, Bad Boy