“Let It Go” is more than a Frozen anthem for the pre-school set. It’s also a hard-core success strategy for giving yourself — and those around you — a truly happy holiday, from Thanksgiving preparations through New Year’s Day (and the rest of the year). I saw the power of a few of these little actions in the research for The Surprising Secrets of Highly Happy Marriages, and The Kindness Challenge, but it applies to all sorts of situations. Especially during the Christmas and New Year season, you’ll be shocked at the difference if you say and do these four things. Click below to start reading.