Now that we're in the peak of winter, many of Us are looking for tips to stay cozy and look good no matter how frigid the weather. Earlier this month, Bethenny Frankel revealed that these Spanx leggings are one of her favorite winter-time fashion hacks. The former reality star-turned-entrepreneur took to her fashion blog, writing, "Instead of piling on more sweaters, focus on insulating from the waist down," before recommending fleece-lined tights to "add warmth without changing the look of your outfit.