Most hairbrush cleaning methods are pretty basic—pull out the hair with your fingers, cut it off (carefully) with scissors, or do the double-brush scrape, where you clean one hairbrush with another hairbrush... which tends to leave both hairbrushes kind of messy. But if you use a boar bristle brush, if you regularly use styling products, or if you've invested in a really good hairbrush that you actually want to keep for a while, it's time to take that cleaning routine to the next level. The stainless steel rakes on the Olivia Garden hair brush cleaner help scrape styling product residue off boar bristle brushes, which is great. But even better is how much easier it is to clean your brushes with this thing—this kicks the old "double brush scrape" maneuver around the block. $10 at Amazon.