Soak up some sun. Really!
Today is the winter solstice, the shortest day of the year. This might make some sad -- so little daylight -- but it's a day to celebrate! For the next six months each day gets longer!
As a glass half-full kind of guy I want to take advantage of all the daylight I can get to keep me positive, looking for a silver lining and greeting each day greedily. None of that is a money thing. It's about embracing each day and making sure that all your hard work puts you on the path to happiness.
Go out and spend some human capital by cheering someone up today!