Surround yourself with great people
Love your job
If you don't love your job, leave your job
If you can't leave your job, find life beyond job
Sing daily, especially if you believe you can't sing
Take every opportunity to laugh
Limit shopping. Shopping doesn't bring the happiness. Am serious.
Have children in your life. They don't need to be your own.
MAKE SURE THE CHANNEL TO YOUR OWN INNER CHILD REMAINS WIDE OPEN! THIS IS ONE OF THE MOST IMPORTANT THINGS OF ALL since it means you will never cease to marvel at both small and big things you see, around you, every day. Also, staying in touch with your inner child gives you permission to be ridiculous which is a great way to achieve happiness.
Find art that works for you.
Wear shoes that lets you be a person. A person who can actually walk, even run, freely.
When possible, climb trees.
Make peace with yourself.