Here is something you can do on the road to happiness - Feed the Starving

Go to the FreeRice website and work on your vocabulary. The more words you get right, the more rice is donated to people suffering from famine. If you click on the Options link you can track your vocabulary difficulty level and how much rice you have provided. 

Try to feed one starving child per day - that's about 500 grains of rice - and you will become much smarter in return, having learned a whole bunch of new words.