I have really long hair - thus I knew the answer to your question,
Vacuum a lot.
Other than that - keep an eye out for a kitty running around freaking out and help her!
It doesn't happen very often around here. Sometimes I see a kitty going nuts trying to groom their butt - and now I know that it's because there's a hair that didn't completely pass. I just pull it out, throw it away, and WASH MY HANDS
Seriously - vacuuming a lot should do the trick. Also, when I brush my hair before I shower, I do it in the shower. And if I blow dry my hair, I do it with the bathroom door closed and then use a hand vac before I open the door.