The new and growing field of positive psychology offers much good advice with loads of tips to help your pursuit of happiness and the good life.
For more Positive Psychology material see Positive Psychology Tips and Tools in the index.
Good Life Tip: Focusing on three good things that occurred each day is proven to increase levels of happiness and decrease feelings of depression.
To experience this for yourself, each night before sleep recall three good things that happened that day. Do this for one week. A good thing need not be something dramatic, just something positive. In addition to recalling each good thing, review what might have caused that good event.
Researchers doing this study found that positive effects continued for up to six months, primarily because the study participants found three good things so satisfying they continued it on their own beyond the study period.
Source: A Primer in Positive Psychology, Christopher Peterson