Try This: Paint A Wall With Dry Erase Paint - A Beautiful Mess
I used this exact same white board paint on a small nook wall in my college dorm room. (See a picture here!) I loved writing out all of my assignments for the semester and marking them off one by one. And I loved when my friends would leave me little notes whenever they stopped by, of course! I also had a chalkboard wall phase in the dorm room.