Some advice from Richard Wiseman’s blog, 59 seconds:
http://59seconds.wordpress.com/2009/11/06/in-59-seconds-putting-in-the-effort/#more-94
“Happiness researchers Kenneth Sheldon and Sonja Lyubomirsky studied people who had recently experienced one of two types of change in their life. The first type, labeled ‘circumstantial change’, involved relatively important alterations to their overall circumstances (e.g., moving house, getting a pay rise, or buying a new car). The second type, labeled ‘intentional change’, involved changes that required effort to pursue a goal or initiate an activity (e.g., joining a new club, starting a new hobby, or embarking on a different career). Both groups reported an immediate rise in happiness, but those experiencing circumstantial change quickly reverted back to their initial levels, whilst those who had made an intentional change remained happier for much longer. Why? When you have the same wonderful experience time and again you become familiar with your new source of joy, and so cease to derive anywhere near as much pleasure from it. In contrast, intentional changes create a constantly changing psychological landscape that prolongs happiness.
“59 Seconds tip: Pursue ‘intentional’ change by starting a new hobby, joining an organisation, learning a new skill, initiating a project, or meeting new people.”
And some other tips and bits of advice from the site:
” To provide a significant boost to your happiness, force your face into a smile and hold the expression for around 20 seconds.” Scary stuff.
“Participants who spent the money on their friends and family felt significantly happier than those who treated themselves to luxury gifts. Similarly, happiness researcher Sonja Lyubomirsky arranged for participants to perform five non-financial acts of kindness each week for 6 weeks (e.g., writing a thank-you note, giving blood, or helping out a friend). Those that carried out all such acts increased their happiness by an incredible 40%.
59 Seconds tip: Become happier by providing for others rather than yourself. Spending a small amount of money on someone else, or carrying out an act of kindness, may be one of the best investments that you ever make.”
“Boost your health and happiness by spending a few moments at the start of each week listing five things that you are grateful for in your life.”