Drying is an important step when cleaning your makeup brushes, but it doesn't have to be crazy complicated. Blot the bristles with a towel, then lay each brush over the edge of the counter to dry overnight. That last part is key: Placing them flat on the counter can squish the bristles and interfere with air circulation, while standing them up in a cup can cause water to drip down into the ferrule and handle. In a pinch, Patinkin says blow-drying is OK, but keep the air flow low and the temperature down, since you don't want to dry out the bristles or blow out the shape of the brush.
Image via lionesse.net
Image via lionesse.net