I found a really, really cool item for brushes: The Brush Guard. The Brush Guard is made of a flexible plastic that is stretchy (I have no idea what it's made of, but it's patented). I store all of my burhses in a cup on my bathroom counter. Since it's jammed packed with brushes, I have trouble with stray hairs from jamming my brushes back into the cup. These protectors safely wrap all my brush heads so that I don't have to worry about that anymore. More importantly, they retain your brush's original shape, and can is made of a stiff enough plastic that you can slide this breathable sleeve over your freshly washed brush and be able to stand it on end to dry, preventing water from gettting into the glue of the ferrule. You can protect your brushes for travel or in your purse.
BUT HERE'S THE REALLY GOOD NEWS!
I've ordered a boatload of these puppies, and once they arrive, all brush orders will now automatically be wrapped in a Brush Guard sleeve. Added value, no added cost!
If you're curious to see The Brush Guard live and in person, check out their video: