Apartment Therapy has some great ideas about how to make yourself happier, specifically happier in your home. A few of them I currently already do on a daily basis - make my bed, display sentimental items around my home, etc. That being said, there are a few on the list that sometimes fall by the wayside and, when left neglected, they create a subconscious anxiety within me. It is important to recognize how the small things create either stress or relief in your life. Check it out, even just to remind yourself.
Project Happiness
Source: onechloebird.blogspot.com