these things make a home feel happier, at least in my opinion. these are the things I would want in my own home when I move out and can't be told not to have candles, and I can pick the carpet I want.

• twinkle lights (sometimes, maybe. seasonally?). Start with these to set life in your new home off on a happy, positive note! can take down later if it doesn't feel right.
• pretty carpet, otherwise the whole room's feng shui will be off. maybe if i had a pretty carpet i'd be more motivated to keeping my room clean.
• shelves (built-in or bracketed to the wall(s))
• flowers, vased and potted in pretty vases and pots
• scented candles
• beauty - I would love to be surrounded by beauty. beauty can be found in many places, things. surround myself with things i love.
  • pretty prints (in fabrics, etc)
    • cloth napkins in fabric that i choose
    • pretty placemats
    • drapes
  • posters (art, favorite movies/characters/bands/etc)
• an altar, with:
  • twinkle lights?
  • flowers! lots of flowers!
  • idol (not necessarily religious - more like an admired idol)
    • Sailor Moon statue?
    • Wonder Woman statue?
    • ballerina figurine?
    • a fashion designer or someone whose life/work I admire?
  • pictures of things i love
    • the ocean
    • ballerinas
  • asian things
    • an other things of my heritage/origin/roots
      • things I loved as a child
        • Totoro, the cat bus
  • water. maybe one of those small meditation plug-in waterfalls? not for looks, since fake waterfalls are stupid, but for sound, because even a fake waterfall sounds like rushing water (but more like a creek than a waterfall. maybe they shouldn't be called waterfalls but creeks.).