Kids love leaving crayons and colouring books all over the place. If you're a parent, or you will have a lot of kids around for the summer holidays, consider using a cheap dish rack as a colouring supplies organiser.
Personal weblog Heather J's Life shared how she found the idea in an old issue of Real Simple. Just put crayons in the utensil holder and file books in the dish rack itself. Definitely not rocket science, but if you're about to have a household of kids invade for your house for the holidays it might be worth spending a few dollars so they can be occupied during their visit.
What Works For Me: Organizing Coloring Books [Heather Jones]