This is a DIY design that is probably one of my favorite designs of my entire apartment.  It is so practical and useful, that I honestly don't know how other people don't have this at their place.  My roommate took a white board, that has a cork outline, and jazzed it up with colored tape to divide the board into different sections.  She made the top portion just a general section to write whatever we want on there, and the bottom section divided into three parts (the two outside boxes are for what we individually want, and the middle box is what we both need for the apartment and can split the cost on).  She took a plain white board and took it to a whole new level of essential.