I was looking for a more efficient way to label papers to be copied by my classroom helper. Sometimes I would attach post-its, scrap pieces of paper, or even little checkbox forms, but nothing quite worked: I ran out of forms, the notes would fall off (especially when the copies came back and I forgot what grade needed the copy), and I kept writing down the same things over and over. So on a set of clothespins, I wrote each copying instruction on a single clothespin. For example, back to back, collate, class set, grade, color, etc. It has worked great. I have them attached to my desk organizer, so they are accessible and immediate (no pencil required).
I also just finished a new product available at my Teachers Pay Teachers store – I have Who has game for Measuring Lengths.