i deep-cleaned my make-up brushes today. lookie how i laid them out to dry
instead of laying them flat on a towel, i placed them on top of a small box and let the bristles dangle off the edge. this way is more sanitary since microbacteria and whatnot from the towel (no matter how clean it is!) don't get transferred to the brush. also, it makes for faster drying time, since both sides of the bristles are exposed to air.
i saw this method of drying brushes in one beauty blog before, so i'm not going to take credit for this. i'm just sorry that i can't remember where, but thank you so much for sharing!
for drying kabuki brushes, check out enkore's method.