Proenza's Spring Ads; Kate Middleton Turns 30; Diet Tips from Simon Doonan

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•Natasha Poly demonstrates the art of sitting on chairs for Proenza Schouler's spring ad campaign. Apparently it's harder than it looks. [Huffington Post]

•Here are 10 diet tips from Gay Men Don't Get Fat author Simon Doonan to kick of your new year resolutions. Turns out that guacamole we ordered Friday night was a no-no. [Stylelist]

•Lifestyles of the rich and fashionable: Here are five photos of Coco Chanel's Paris apartment [Refinery29]

•Better than pillow mints: You can now get your own Ace Hotel nail polish [Racked NY]

•A mild start to winter is putting a damper on boot sales, WWD reports. If this means January discounts, we're not complaining. [WWD]