Meet TempErase: a simple product that turns any surface into a dry erase board. You can use it on your refrigerator, wall, windows, and anywhere else. To get started, simply peel off the backing and apply. The adhesive is strong enough to work on doors, desks, and painted walls. TempErase is also easily removable.
TempErase comes in 2- or 4-foot widths by 16-foot-long rolls. You can cover your entire office with these if you need to. More information is available here.