We made a donation to watsi today too, as part of our in-house flossing contest. A dry-erase marker and a bathroom mirror keeps the tally, and about once a mont

We made a donation to watsi today too, as part of our in-house flossing contest. A dry-erase marker and a bathroom mirror keeps the tally, and about once a month, someone wins. When the tally gets reset, the total number of flosses is donated, in dollar form, to a charity. You win, because $1/floss is worth it in aggregate to prevent future dental bills. Someone else wins, because they get the treatment they need to live a better life.