Right, I think I've got it! I enlarged the chart onto a photocopy and then colour coded all the types of cable. And I'm using a row counter and writing down what to do. It's going to work this time!
I did 12 rows last night, but haven't had a lot of time.
I treated myself to a copy of Yarn Forward. This is issue 9 or 12 or something, so it's been out for a while. I probably wouldn't buy it regularly, but it's quite good - a bit more fashionable than the other titles out there.