L wink says that they started using dollar bills as book marks. They said, if i lost a book after putting a one dollar bill inside it, i would switch to a five, two, a ten. And then at 20, having an economic incentive, they write, helped activate a different part of my memory and made remembering where i left the books a lot easier. But if you are forced to work in an open office, Patron hatlan m wanted to offer some advice. Bring it up to h r as a disability accommodation if you need to.