My sister-in-law gave me this great shirts, but there was a catch. It had a 1cm hole on the chest. She figured that I might be able to fix it, so I tried my hand at darning.
Darning is a pretty simple way to fix a hole in knitted fabrics, well at least if it's a fairly small hole. You basically stich rows across the hole horizontally, then you stich rows across vertically. Kind of like this:
I used plain old black cotton thread for my fix but I think embroidery floss would have worked really well also (I didn't have any at the time).
I didn't stitch quite so far around the hole like in the picture above but it still worked pretty well. Take a look:
You can barely even see where the hole was! I now have another shirt for work that actually fits.