I recently got to interview Peter Walsh, host of Extreme Clutter on OWN: The Oprah Winfrey Network.

Peter was in town for O Magazine's annual summit, O You!, along with the rest of team Oprah... Nate Berkus, Suze Orman, Dr. Oz, Lisa Ling, Bob Greene and more (I'll post interviews with them over the next few days).

I asked Peter for his No. 1 tip on staying organized during the holidays, which was "Make a list."

I was surprised that he said to not only make a list of the people you want to come to your holiday party, the things you need to do, and the things you need to cook, but also the people you want out of your life for good.

"If you're going to de-clutter, Christmas is the time to get rid of those people who are dragging you down," he says.

I also asked him about the show Hoarders and IKEA who sponsored Peter's trip to Atlanta (he hosted a cocktail party at IKEA's Midtown location the night before).

"IKEA has beautiful stuff, elegant design and a fair price, which is a home run," he says.