Paper is one of the office supplies that we take for granted. It's somehow reassuring to see the stacks of A3 or A4 printer paper, piled neatly by the printer or photocopier. If they run out, we're surprised and surprisingly discombobulated.

I think I'm a reasonably patient person, but there's one thing that really riles me. It's when I'm in a hurry to print a document in the office and the printer runs out of paper. Or I find that there's a paper jam and someone has put colour paper in a black and white printer.