Anyway, I have been drawing on these cardboard rectangles, and they are excellent. You don't have the bits of paper flopping about like with a sketchbook, they are light, and yet quite rigid so you don't need to put them on top of anything to support them, you can draw with one on your lap. They aren't all quite the same size and proportions, but that's fine, I don't mind. They have the odd pencil squiggle on them, but I can rub that out, and they take paint well so I can also overpaint them.
I don't even know what these things are called, let alone how to get more of them. I'm wondering if I called a picture framing shop and asked if they had any middles, they'd think I was mad.
In other news, I hate writing proposals, and will apparently do almost anything to avoid finishing this one. Writing proposals is THE WORST.