If you want an easy way to organize your paint brushes, this is how I do it.
Take a clean glass vase or jar.
Add in some glass beads/marbles until the glass vase is about 3/4's of the way full.
This is three Dollar Store bags worth of blue glass beads.
To make it look more "put together" feel free to add some ribbon.
Then start adding in your brushes!
Now you have a cute and organized way to store your paintbrushes.