Let's face it: Not everyone is born with the decorating gene. But if you want to make your place just a little nicer without having to spend your weekend completely overwhelmed at a furniture store, you can count on these designer tricks that will work in any home.
Your Curtains Should At Least 'Dust' The Floor Hanging your curtain rod slightly above the window also helps create the illusion that the ceiling is a little higher than it actually is.
If You Can't Commit To Any Color, But Hate White Walls..."Griege" Goes With Everything A cross between "gray" and "beige," this neutral is unobtrusive enough to not compete with any decor choices.
Eye-Level Lighting Is The Most Flattering Lighting Of All Make sure you incorporate a few table lamps into the mix.
The sconce on either side of the mirror, at eye level, lights your face perfectly
The Best Height To Hang Mirrors? 57" Off The Ground This is generally considered "eye level." 
Use mirrors in a space to reflect something beautiful, or to make a space appear larger and brighter.
Choose An Area Rug That's A Little Bigger Than Your Furniture Arrangement Generally speaking, the front legs of each piece of furniture in a group should at least sit on the rug.
HOW TO CHOOSE A RUG SIZE: Rugs should be big enough so that at least the front legs of all major pieces of furniture in a conversational grouping can be placed on top of the rug.
You Don't Have To Push All Your Furniture Against The Walls If you have the space, use furniture to divide the room into separate areas.
Don't "circle the wagons" and put your furniture against the walls, create squares and rectangles and divide your space into useful areas.