The most important thing to do for a peaceful home environment is to get rid of the clutter. Many interior design ideas for home would suggest that you store away all things that aren't required and only keep the bare minimum at home. Decluttering is the key to a peaceful environment at home as it puts your mind at ease. Not to mention how it is also a philosophy that the Japanese propagate. Keep the living room basic with a couch, a television, maybe a small plant, a lamp, a coffee table, and that's about it. Do not crowd the setting with unwanted artefacts or things that do not serve a purpose. Follow a similar practice in the other rooms as well. Store all the extra essentials and only remove them when needed. Overall, leave room for the sunlight and movement to take place in every room of your house.