Nothing...I learned my lesson last winter and decided that I'm not gonna fight the cold. I am on a low maintenance kick all winter...and during the worst of it (Jan-Mar) I am protective styling. I utilized Dominican blowouts in October and November, then in December I was hospitalized most of the month so I had two-strand twists/twistouts, and now I am in box braids. When these come out, I will either redo them, go into kinky twists, or jump on the crochet braid bandwagon. I will say that the heat in this house seems to have everything a bit drier, so I had to moisturize my blown out hair more often -- but now I am only dealing with dry skin and sinuses.