Our environment has an influence on our mood. since  we spend a good part of our days indoors, using happy colors in our environment can lift our mood. It is a good idea to start by choosing a pallet found in Nature in a landscape that bring you happiness don't be affraid of being original and don't try to blend in . Too many houses are just another variation of beiges and browns. Think about what makes you happy, a beach with blues, greens. aqua, sand, or a prairie with greens sky blue and flowery tones, I started with the colors I observed on vacation in the Florida keys all different tones of aqua and instinctively I warmed up the cold tones with bright pink, yellow, orange like the houses in the keys. Make your place happy, make it for yourself, not for showing. You are the one spending most of the time in your house, make it your home, a happy home.If you are using paint remember to choose a low V.O.C paint.