I need some help from my knitting diva friends!!!

I'm in a "fashion crisis". I'm a stay-at-home mom, "thirty-ish", and I guess I figured that jeans and T-shirts were going to be okay to wear forever. Well, I'm feeling more and more like I need some "adult" style as I get older, but I don't even know where to begin to start to find out what is out there. My stuff in my closet is SOOOO outdated (not even the point of being a neat "vintage" look--just plain ugly, and not updateable by adding accessories)...I have stuff in the