08/27/2012 10:28 am ET Updated Dec 06, 2017

WATCH: Gretchen Rubin's Inspiration For Writing "Happier At Home"

When Gretchen Rubin, author of "The Happiness Project" and "Happier at Home," spoke with me on Mondays With Marlo, she shared an experience that inspired her to pen "Happier at Home." Who knew you could feel homesick in your own house?

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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