I think it's learning what your hair likes. Before I started lurking on nc.com and using product/technique, my hair was barely wavy in the winter. Since I've learned how to take care of it, it looks like my signature picture all year around.
When the dewpoints are low, you need to up the moisture. When the air doesn't have moisture, it sucks it out of your hair and skin. I use an extra layer of product--leave in AND curl enhancer with a jelly product. I also keep up the protein with moisturizing PTs. It helps tighten curl, increase volume and reduce frizz for me.
3a (Corkicelli), highlighted, fine, low porosity
modified CG, since April '07
CG since 3/11/08
HGs: Anything Sevi; Curly Kinks Satin Roots, Curlycue ReNew and Coil Jam; homemade FSG and okra gel; soap bars; UFD Curly Magic; Botanical Spirits Jellies, CJ Repair Me