Yeah, I know. There are all kinds of tests on the internet to determine how happy you are, but this one is more helpful in that it tests 6 categories of happiness and gives explanations and suggestions for increasing your score. And all this without having to enter your email address (unless you want further information about each category.) I found it fun. You can find it here.
And my suggestion, of course, is to hand out some Happiness Cards. Making someone else happy is a sure way to increase your happiness.