I pass these out every 4 weeks to my students. They are responsible for keeping it. I walk around and give them a grade for Bell Work (BW) which is the work they do before class starts, as well as Homework (HW). They are also required to get it signed every Friday and returned on Monday for a grade.
There are color ones for all 40 weeks, where holidays have their own special background. Included are the PDF versions and Word documents in both color and black and white. The black and white one for some reason doesn't have weeks 1-4 but if you print the color page in black and white it should be fine.
Hope you like them!