Track2Habit for

From Medcosm:

This PDA program allows you to easily log personal habits, for example, smoking. Your data is available for visual inspection in tabular or graphical form, and may even be exported outside the program if desired. Use this program to raise your awareness of how often you perform particular habits. Examine your data, and then engage in any necessary behavior modification and self-improvement. Track2Habit can simultaneously track any number of habits.