When it comes to sticking stuff together or really doing anything at all with glue, I become completely incompetent. The number of times I have had double sided tape stuck in my hair, superglue on the carpet and pages stuck down crooked it beyond memory. So I thought I would be really clever and save myself some work by just printing my concertina on an A0 sheet of paper and cutting it out. But alas no. Apparently printers can't print A0 double sided sheets. How ridiculous.