By Gretchen Rubin

2011 Happiness Challenge: For those of you following the 2011 Happiness Project Challenge, to make 2011 a happier year -- and even if you haven’t officially signed up for the challenge -- welcome! Last month’s theme was Possessions, and last week’s resolution was to Spend out. When I started my happiness project, I assumed I was the only person who had trouble spending out, and I've been very surprised and gratified to learn that many people struggle with this, too. Did you try that resolution? Did it boost your happiness?

This month's theme is Creativity, and this week’s resolution is to Do something every day.

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