Where does time go?

I have a problem with time — it usually slips away from me and at the end of the day I have not accomplished what I should have. I accomplish some things, but not what I should have accomplished. I get easily distracted and go on tangents, never coming back to the original point. That is nice for exploration but not for efficient time use.

Virginia Tech offers a nice resource for students to manage time, especially the test called Where Does Time Go?. I have seen other similar tests on the web, but this one I just came across.

According to this test, I should have about 40 free hours per week to do what I need to do, give or take a few hours.