The Five Minute Journal The Five Minute Journal: A Happier You in 5 Minutes a Day ($25) guides you through journaling exercises with prompts meant to encourage gratitude and positivity. It has an impressive 3,439 five-star reviews on Amazon, with one reviewer even calling in "life-changing." Image Source: amazon.com The Five Minute Journal: A Happier You in 5 Minutes a Day $25 from amazon.com Buy Now