In terms of happiness, I often think about how important it is to accept sadness too. As in it is ok to be sad, it can make the happiness that much sweeter. So interesting that so much emphasis in western culture is placed on the happiness surrounding things and experiences - generally speaking as outlined. For me so much more important to learn about the importance of peace and calm as it relates to happiness. I sprinkle that thought through out my childs lives, plus a smattering of how one can still be happy with out all the 'stuff'.
Enjoy your holiday and your happiness.