What is your favorite happiness fact?  It could be a surprising research finding, or a great quote.  Be sure to fill out the questions below.  Each valid submission before Thursday 10/1 enters you into a raffle for a $10 gift certificate to zappos.com.  Selected happiness facts will be published on happier.com, on twitter (from @happier) and in other sources.

The details: Whenever you give us permission, we’ll make sure to credit you.   You can enter as many unique facts as you want, prior to 10/1.  Each entry counts toward the gift certificate raffle.  And if multiple people enter the same fact, we won’t count it against you.  You still have a chance to win.

Just use the form below or click here.

happier.com is a personal trainer for your happiness. With more than a dozen tools and tests to help you measure, track and improve your happiness, you can trust the happier.com experts to help you reach your goals. Exclusive videos and a popular blog mean there’s something new to learn every day. Download the free iPhone application or find what you’re looking for with the Positive Psychology Practitioner Directory. happier.com is on Facebook, LinkedIn, and twitter and has meetup groups in Washington, Philadelphia, and Portland, with more planned. Click here for a social media press release from our launch.