You know what's worse than having paper sizes with differing aspect ratios? Having different paper sizes by region. The simple fact that if someone in the US

You know what's worse than having paper sizes with differing aspect ratios? Having different paper sizes by region. The simple fact that if someone in the US sends me their CV and I print it in London, it comes out looking bad (sometimes even sideways, by some bizarre quirk of some rather expensive printers). I mean, sure, the paper sizes used in engineering in the US have the property that two smaller ones side by side match the next larger size (http://www.engineeringtoolbox.com/drafting-paper-sizes-d_214.html http://www.engineeringtoolbox.com/drafting-paper-sizes-d_214...) but it's still a pain because it's all denominated in inches. There's no reason for that at all--it's not like there is value in having engineering drawings printed on physical paper with round-inch dimensions--even if the drawings are in inch scale. So, US people: step up and abandon your paper sizes, because no one else is going to do it.