It's been a week of sweater surgeries both at work and at home. I had to cut the sleeve off a customer's sweater, shorten sleeves on another customer's finished sweater, and repair a hole in a 3rd customer's sweater (aside: Please cut knots out of your yarn as you get to them! You don't even want to know what this woman's sweater looked like and what it was like fixing it).
My own personal sweater surgery was done on Adam's Cobblestone, which turned out to be 2" too short. There was no way I was ripping out the yoke to lengthen the body, so I decided to cut off the bottom garter stitch and knit 2" onto it, then graft it all back together. I photographed it all and made a tutorial, which I've added the Chiagu Resources page (meager though it is so far).
Hope you find it useful, although I sincerely hope you'll never need it!