Personal growth always comes in handy when you least expect it.

Learning something new everyday, is personal growth and becoming a better person than you were the day before.

http://lifehacker.com/5905835/top-10-highly-desired-skills-you-can-teach-yourself

I love setting goals for myself.  When you complete them, you feel a kid in first grade and want to hang your picture on the refrigerator 😉