Free Time Management E-book (Highly Recommended!)
Update: The price is now up to $2.99, but still very worth it in my opinion!
Tell Your Time by Amy Lynn Andrews is currently free on Amazon. If you've never read this e-book, I highly recommend you do so. This is one of the most helpful books I've ever read on the subject of time management.
If you don't have a Kindle, you can still get the e-book for free, then download one of these apps to read it on your computer or another device that you own.