Imagine this: A wall calendar that shows dates and corresponding weekdays forever! Impossible you say? Peter Woudt, the designer behind FUTRO perpetual wall calendar will prove you wrong. How it works: There are only 7 days a month can start on and only 4 different month lengths (28, 29, 30 and 31 days). So with only 14 double sided inserts all 28 variations are covered. All the cards you will ever need are contained inside the calendar!
FUTURO perpetual wall calendar. Me likey!