Like many creative types, I'm always forgetting what day of the week it is. This little accessory solves that problem — this month, next month, and every month to come.

In case you've never seen one before, this is a perpetual calendar. The stainless steel slider is marked with the days of the week and the acrylic stand is printed with a pattern of numbers that works for every calendar permutation. Just slide the steel piece so that the correct day/date pairs are showing for the current month, then forget about it until next month.

Measures 130 x 72 x 33 mm (5.1" x 2.8" x 1.3"). Made in Japan.