Whiteboards are the ne plus ultra of the KISS principle (Keep it simple, sweetie!). An old school whiteboard re-attached to the back of the kitchen door holds menus, appointments and to-do lists for summertime. There are dozens of tutorials for pretty "Kitchen Command Centers" online, and I've pinned more than a few. This system has worked so well for our family that I may upgrade to a designer version in the fall, but this old board is serving me well for the summer when I'd rather be outdoors.
Linked up at Works for Me Wednesday