For you non-perpetual calendar types (sorry Katie) Vignelli offers this visual beauty for a wall near you. As the numbers are close together, there’s scarcely enough room to write, so I suggest getting a red wax pencil for you to inscribe cryptic circles and x’s on certain days. I leave the decision of which days to choose to you.
Ed. note: I honestly do love perpetual calendars though. Much more environmentally and economically responsible. Don’t buy this calendar. Find a nice little perpetual one.