How do I take care of my Nail Art Brushes Properly?

I'v been using nail art brushes for a while now and I just got a really nice brush set with lots of small fine tipped brushes, my problem with them is no matter how carefull I am about cleaning them and storing them little hairs on my brushes will get pulled and tugged and not be together the tip, so when I use them I will get small lines of single hairs having polish on them. So any good tips in nail brush care? :]