|Are you as organized as these cats? Then you might like to try|
the Daily Record's happiness schedule. From Music Juice.
Of course these results are correlational, so we don't know if this schedule makes people happier, or if happy people just happen to follow this schedule. To test causation, someone would need to ask volunteers to follow the schedule while testing happiness before and after.
You can read the article for the full list. It has 17 items on it and gets very specific. I don't know if it can be put into practice, but you're welcome to try if you want.