08/24/2012 01:58 pm ET Updated Dec 06, 2017

WATCH: Mondays With Marlo: Gretchen Rubin With Marlo Thomas

This week, I had such a pleasant chat with Gretchen Rubin, author of "The Happiness Project" and "Happier at Home" on Mondays With Marlo. Gretchen tackled all aspects of achieving and maintaining happiness on the show.

You can pre-order Gretchin's latest book "Happier at Home" here.

For more fantastic advice on lifting your mood, see Gretchen Rubin's tips on happiness:

Tips On Happiness From Gretchen Rubin

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