Two compartments with a mirror on the backside is great. Anything else that can be added to make it the "Swiss Army Knife" of hair brushes might work well too. Pony Tail Holders? Pull-out tweezers? nail clippers? Scissors? I am getting carried away... :)

This is my favorite. Love the additional handle storage and the CLEAR backing on the brush it clutch...I would want to see what I am looking for instead of digging everything out just to find it isn't there. May wanna make the back side of the handle clear too, but not necessary.

Great idea. A mirror on the bottom side could be useful if it doesn't get scratched by stuff placed in the bottom.

I definitely like the use of the back of the brush.

Good thinking!! Why not!! Let's use all the space.

I like this idea best because it utilizes all the space a brush offers. You might consider two different compartments at the top- one for hair ties- the other for small clips-(or what ever a person wants to divide) At the bottom part use this for longer hair pins for a better fit. I would definately not allow a separation of the parts, way too easy to lose. You would have to make sure when you are brushing your hair, it doesnt get caught at the top portion. Having your hair pulled is never fun. I also like the transparent top. All good stuff!

If we are going to make a brush with storage, let's maximize it and use the space behind the bristles as well. Nice, Waveybrain.

I like this one, Waveybrain!

Forgot to mention the transparent back, to see your contents easily.