I need a toothmark

I really hate it when I lose track of which gap I've flossed. It's very frustrating and uses up valuable floss in the confusion! And I always think if I backtrack just one tooth, I'd be safe. But no, because upon arrival at said tooth, the feeling of deja vu hits and I second guess my position again. I know it's partly because I use an unconventional pattern. Anybody can go from left to right, or for you brits, right to left, but I prefer to start with the center-most gap, and work my way out, alternating sides. 0, +1, -1, +2, -2, +3, -3, and so on, till I lose track. Maybe I just need to check each one off with a pen as I go.

The heretics amongst you may say "he's gone too far! he's blogging about flossing!". But I say to you: nyah!