I suggest. Mini utility. Name Indicator of life. Simple time tracker.

[reifwp]

The meaning of the program. Timing, personal log. Tracking what you do behind the computer. Report and motivation. After a set time (assuming 15 minutes), a window with 3 buttons comes out. The buttons 1,2, 3. After an instant click, the window disappears into the tray.
Buttons:
  1- Doing a useful job. For myself, for money, leading to a dream.
  2- Occupation around. Useful.
  3- Sand. Empty lesson.
Then you can see the reports. Per day. For a week and so on

[wraith808]

Anuran from skwire does this, though not exactly as you've said.

From the page: Anuran is rotating, automatic-prompting personal text log.