If you have hair like mine (layered, fine, soft and lots of it), then this time of year is a nightmare of flat hair and static.
I personally can't stand having overly processed or stiff hair, so over the years I've cultivated a little stable of go-to products to keep my hair looking and feeling good.
First of all, what makes a huge difference for me is not washing or conditioning my hair everyday. I do it every four or five days. It keeps the natural oils and gives it more body.
That said, these are my tried and trues.
MOP Lemongrass Lift I use this all year round. It gives my hair fantastic body and keeps it in place when I wear it up. If I'm going to style it (like curling it for a wedding), I put this in when my hair is wet and it is the only product I need. I NEVER, EVER use hairspray.
Neutrogena Triple Moisture Silk Touch Leave-In Cream Weightless and easy. I use this when I'm really feeling static-y.
AVEDA Phomollient Styling Foam Also very weightless.
Terax Crema I think this is the best serious conditioner. My hair feels so silky smooth when I have time to let it sit on my hair with a shower cap on.
Aveda Pure Abundance Volumizing Clay Conditioner This makes my hair feel light and fluffy. I need product in it after using this one.