5. Lots of Furniture
No way! You do need enough space. Whether you live on your own or with other family members, let your home be spacious and airy. Do not clutter the area with useless stuff. Pay attention to the furniture that you have. Be realistic and get rid of the pieces that you hardly ever need and use. If you are a party person and you often invite people over, then heavy armchairs all around is definitely not what you need.