Instead of apathetically recognizing another passing day on your calendar, perhaps put a bit more meaning into it with the WWF One Daily Drop. This unusual annual encourages you to keep track of the month manually but to actively engage in making sure that the number is up to date.
At its core, Alan Gonzalez's product is a planter. Surrounding it is a frame that holds the flower pot and extends upwards with a transparent scale on one side and a large eye-dropper dangling down the middle. An adjustable clip should be moved upwards with the passing months and the markings on the dripper designate the current day. Fill the WWF One Daily Drop calendar up with water on the 1st and maintain a rhythm of depressing a button to feed your plant each morning or evening.