a dentist friend of mine gave me a floss card once (looks like a credit card only has floss in it). still have it and i don't know what i'm going to do when it runs out, it has literally been a life saver for me. if there is one thing i hate in life is having something caught between your teeth all day.
Edit: thank you google! http://www.flosscard.com/order-retail-10-packs/