Bought "Orchestration" by Cecil Forsyth on a whim. Well, kind of on a whim - I caught sight of a review that this was not your regular orchestration textbook, but has a bit of English humour in it. And it does! So, I'll learn and have a laugh too, win!
Also, as it was used (my 2nd edition is from 1966?!), cost only a few quid off amazon.
Also finished off my first two studies of Bach chorales. They are a work of art in their own right, seriously.