large Foam core boards to brainstorm ideas. Ikea Benjamin stools hacked to keep the boards upright. They can still be used as stools when needed and are also great for creating temporary walls for project spaces.
Using an IKEA DIGNITET curtain wire is a quick and easy way to store art supplies so they are close at hand and visible at all times. The IKEA Home Tour Squad used it in their craft room makeover to store watercolor paints!