On my way into my other job, I usually see a sidewalk board from the salon behind us to entice potential walk-in clients. For the past few weeks, the sign has simply said "Your hair shouldn't say 'I give up!'" Uh, okay? A little presumptive, but also reflective of modern culture--to say hair is important is an understatement. Is it smooth, frizzy, curly? What color is it: brown, blonde, blue? Is it the right hair style for the occasion? Is it doing what I want it to do? Why i