Things non-knitters (especially non-needleworkers) don't get about knitting #189,308: if you work on the right sort of project, you can start off exhausted and end up energised. Tonight I worked on my socks while watching a film, and although I'm certainly ready to go to bed now, I feel a lot better than when I started.
One reason why is that I have fewer than ten rounds to go before starting the heel. It's going to start looking like a sock soon, instead of a tube with a decorative pattern on it. It's always good to get past the leg part because the foot is plain (and therefore quicker) knitting. In this particular case the sole of the foot has fewer stitches than the patterned part too, because cable patterns need more stitches than other types of patterning to cover the same amount of space.