Arm knitted infinity scarf

I really like the look and versatility of infinity scarves and since I don't have one of my own, I made one! Again, I went on YouTube and found an instructional video.  I had a really hard time casting on, but after that this was very easy! Now that I know what I'm doing, I could make one of these in 30 minutes.  This one used bulky yarn, which is what you want, and 2 balls of it.  Next time I will cast 6 versus 12 to make more narrow. What do you think?