I was thinking the ones other than smoking, drinking and or dieting. Perhaps on a more simplistic note, like small little areas of self improvement, job change and or steps toward leading a more meaningful life. An adjustment toward the pursuit of happiness.

Suggested Reading:

The Wallace D. Wattles Collection of Self Improvement Books [Illustrated]The Science of Getting Rich, The Science of Being Well & The Science of Being Great. Three of the greatest books on self improvement ever written.