In this day of Home Depot and DIY, what do interior design professionals know that the rest of us don’t? Plenty, it turns out! We asked three different designers to share their best tips for home updates big and small. Read on for style secrets.

Benjamin Huntington is a residential designer who has worked in the U.S. and the U.K. Huntington teaches and practices Feng Shui, the ancient Chinese art of creating a harmonious environment. He has made many media appearances as a design expert, including a spot on “World News Tonight” with Peter Jennings.

Though his style is refined (his work on a New York City apartment entryway, above left, is as crisp and classic as a dry martini), Huntington’s advice is down-to-earth and easy to execute:

1. Install dimmer switches in every room so that you can adjust the lighting to suit your moods.

2. Try using perimeter lighting – table lamps, standing lamps and sconce lighting – in bedrooms, and avoid overhead lighting if possible. This will mimic the feeling of sunset or sunrise.

3. Do not skimp on knobs and handles, as you will touch these almost every day.

4. To make your guests feel more comfortable, avoid arranging a seating group where the main sofa has its back to the main entrance to the room.