Thanks for all these replies. I worry that with fine fine hair (I've got lots of it, but the strands are crazy fine) the flat iron may just toast it. I like the idea of washing at night -- though there's still the problem of it being cold in the house! Maybe I can try diffusing again. My hair tends to get big (not in the good way) fast, but I can try to be more careful than in the past . . . Thanks for your input!
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3b, fine, medium density, normal porosity
Wash: Up in the air right now; Phytolisse and Shea 10-in-1 not working amazingly
Rinse-out: CJ Deep Fix, Phytolisse, Shea 10-in-1
DT: CJ CCCC Lite, Phyto 7
Leave-in: Phytokeratine, CCCCL
Styling: Phyto hair curling stuff