"Brain Workshop is a free open-source version of the Dual N-Back mental exercise.
What if a simple mental exercise could improve your memory and intelligence?
A recent study published in PNAS, an important scientific journal, shows that a particular memory task called Dual N-Back may actually improve working memory (short term memory) and fluid intelligence. This finding is important because fluid intelligence was previously thought to be unchangeable. The game involves remembering a sequence of spoken letters and a sequence of positions of a square at the same time."
-Log how much work you get done each day and compare to how much sleep you get each day
-Write a program to test your memory for seeing visual objects on screen
-Write a program to test your reaction time to visual stimuli on screen
-Play StarCraft 2 and compare the Actions Per Minute of your latest replays
-Do Sudoku and log the average time it takes you to complete puzzles of the same difficulty category