Keep your makeup brushes clean on the go. Spray this on a tissue and rub your brushes until they are clean. PERFECT for travel.
I must admit that I am really terrible at keeping up with cleaning my makeup brushes, which only leads to biting me in the ass as it creates increased bacterial problems and breakouts. I recently bought this to help encourage a better system in keeping up with cleaning since it's easy to use and daily use will help in establishing better habits to keep on top of it.