I started a commission project.
I went to the store and purchased the yarn.
It was on sale! Woo-Hoo.
I bought a bunch of it.
I started the project.
I knit faithfully on it every chance I got. (At work on breaks, at home during movies...it is a very handily brain-free project. Knit every stitch for forever and a day with an occasional color change.)
I am out of yarn.
The project is not done.
The project apparently eats yarn like I eat green beans. Voraciously.
The store, having had a sale on this particular brand of yarn, is out of my colors.