Author Gretchen Rubin received internationa l attention for her2009 best-selling book,The Happiness Project,in which she reexamines her own happiness and tries to develop moodboosting habits.Rubin shared some of her most efficient moodboosting tips.For the most pa rt,they can be accomplished in a minute or less作家格雷琴·鲁宾因为2009年的畅销书籍《快乐计划》而获 Author Gretchen Rubin received internationa l attention for her2009 best-selling book, The Happiness Project, in which she reexamines her own happiness and tries to develop moodboosting habits.Rubin shared some of her most efficient moodboosting tips.For the most pa rt, they can be accomplished in a minute or less Writer Gretchen Rubin won the 2009 bestseller Happy Plan