I used to use Glide floss, which was the best floss around, even after Procter & Gamble bought it from W.L. Gore and changed the product a bit (I suspect). For some reason somewhere along the line I stopped using floss and started using these floss picks, even though they're not friendly to Mother (Earth).
I can imagine millions of them gathering together in some mile-wide flotsam in the ocean, or scattering the beaches of Polynesian islands ... Paul Gauguin's famous Tahitian landscape littered with used floss picks. I pay $2 for a pack of 75, which lasts a couple of months.