The wire lady's been looking a bit sad lately. Could be because she doesn't have a name and is a bit dodgy on her feet, but I suspect it's more that she's been wearing the same little jumper for several weeks. I's a nice little jumper, but a girl needs a change now and then. I had one or two scrummy yarns I'd never made a sample for, so I set about finding a pattern.
I chose this one: http://www.ravelry.com/patterns/library/fargo-asymmetrical-vest
Lovely! Free! Entirely suitable for one of the yarns I wanted to use and it would be nice and chunky because I had to use the yarn double. I chose my yarn colours and set off. And then I did something I never do: I checked my tension. I spend my life telling people to check their tension. But for me, nope, can't be bothered. Anyway, it turned out I was getting a perfect 13 stitches to four inches and I felt pretty smug. See, I told myself, I don't need to check tension!
I'll cut to the chase: when I'd knit up the right front, it reached down to my knees. There might be designs where knee length is desirable and attractive, but this wasn't one of them.
So, I'll just say this: if you're substituting yarn, check the row count on your tension square as well as the stitches. You always do? Oh, right. Just me then...