We will be returning to CN in Jan. and I would like to get my hair braided like I do every time!! But I notice that the longer my hair is, the more gunked up the beads get. Last year all the beads stuck together in a big clump! I would try to scrub them with shampoo every evening but it made no difference. I thought maybe it was because I started using the spray on sunscreen vs. the rub on kind?? Or maybe that the longer beads had better "access" to the sunscreen on my back? Anyway, I really LOVE my hair braided for so many reasons. Does anyone have any anti-stick advice?