It was not so very long ago that I knit a 10 foot wrap. That wasn't my intention. I was trying to make a wrap that would adequately fit my 5'1" frame. But somehow "10 skeins of Noro is plenty for a wrap" imperceptibly transformed into "don't stop knitting until you run out of yarn." All was not lost, since it was simple (and a wee bit painful) to rip out a few feet of knitting.
I am trying to learn from my mistakes. Four feet of scarf, and continuing.
Today, it is all about the measuring.