Mindset, Well-being 21 Day Happiness Habits Challenge November 4, 2019January 2, 2021by louisekellerLeave a Comment on 21 Day Happiness Habits Challenge The 21 Day Happiness Habits Challenge invites you to customize and implement clinically-researched, simple happiness-boosting habits in your own life for 21 days, with a free workbook and tracking worksheets to help you.Share the love!TweetMorePrintEmailWhatsAppLike this:Like Loading...