[Kaspian]

www.stevepavlina.com/.../self-discipline/ ... and the posts that follow.

www.stevepavlina.com/.../33-rules-to-boost-your-productivity/ ... and the posts that follow.

www.stevepavlina.com/.../do-it-now.htm
www.stevepavlina.com/.../overcoming-procrastination.htm
www.stevepavlina.com/.../getting-organized.htm
www.stevepavlina.com/.../time-management.htm

You might also look at articles/posts that discuss purpose and the meaning of life; when you know what your purpose is and are actively pursuing it, you use your time better.