Two Lucite blocks create this simple perpetual calendar. One slides past the other to indicate the day and month, allowing for use year after year.

Available in Orange or Black

Here's a really great perpetual calendar: "at first glance, the blind date calendar looks like a series of odd shapes inside a frame. but what is this picture? is it a work of art? a code in Braille? actually, it's a calendar that lasts for an entire year and is completely re-useable. the secret lies in the magnetic frames that come with the calendar-- simply roll them over the black signs to discover the dates. a handy "blind date key" is included with the calendar that discloses the dates and names of the months. if you or someone you love needs a re-working of a standard office or desk accessory, look no further. this is it."

Yes, I'm kind of a fiend for perpetual calendars (not a secret to anyone who's been looking at this here site of ours for any length of time). So, in the spirit of continuing what is not quite an obsession, yet bordering on becoming one, I'll post yet another even though it's quite beyond my budget. Hand pressed paper bound like a book, this calendar shows the day of the month by turning the pages. Gift box available.

It's a good time to be thinking of getting a calendar for next year. The Jumping Point calendar was created in 1975 by Michael Domberger to mark the passing of a day by punching out a small circle and exposing the vivid color underneath.

This is hands down my favorite perpetual calendar. I've got a page featuring this calendar torn out from a 1998 Elle Decor (the UK edition) somewhere and I've been intending on finding a local source when I just stumbled upon it today. Thank you, Dumb Luck. If you can't tell from the photo, the black circle is a magnet which reveals the date when it's placed in the right spot.

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.

I might be a little obsessed with calendars. But this one is really the calendar of all calendars. Designed in 1967 for Danese Milano, Italy, by Enzo Mari it alledgedly has become "one of the classic icons of 20th Century Design". And the way I figure it, if you bought this, you wouldn't have to stand in front of the wall of calendars at the end of December trying to decide between the lesser of two evils. AND, you'd actually end up saving money if you kept it for more than, uh, 20 years (assuming the cheesy picture calendars cost about $12)... Available in red lettering on black or black lettering on aluminum. Material: Anodized aluminum, lithographed PVC, English text. Dimensions: 12.40" H x 12.40" W.

This reminds me of school and yardsticks, but in a very good way. Designed by Enzo Mari in 1959 for Danese Milano, Italy. Arrives in a lovely Danese gift box. Available in English or Italian. (also, it's not nearly as redish as it looks in these pictures) Material: Walnut central section, strips of ramin, beech, maple. Dimensions: 18.9" l.

Hello, let me introduce you to the perfect perpetual wall calendar. Designed by Massimo Vignelli. 12.6" x 12.6"