Knitting with dental floss

As most of you know, Paul picked the sweater he wanted me to make for him. As always, they are very interesting and challenging, HOWEVER, this time he picked a sweater that is done with almond and grape dental floss. The yarn is so thin, you could basically use it to get that popcorn thing that always gets stuck in your teeth. I do like the sweater and it is moving a lot faster than I expected...