Here it is, as promised- my crocheted scarf. I messed up at the beginning and as a result the whole thing is 1 stitch narrower than it should be. But other than that it's fine.
I alternated between single, double, and triple crochet, so I could get the hang of doing them all linearly, and also because I'm lazy and impatient and wanted to be done with this scratchy scarf so I can crochet something less painful to work with!
Here's a closer look:
Isn't it shiny?