In the Is-This-Really-Necessary Department, a firm has come up with Bed Books, which are printed sideways on the page, so as to not strain your neck reading. Or whatever.
Now, I am a devoted reading-in-bed woman (as my Darling Husband will attest) and have never thought to myself, “Gee, wouldn’t it be swell if this was printed sideways?!?” Maybe I’m wrong. But it’s just….weird.