This may be a stupid question, but I need to print out my train tickets (from various countries in Europe) on A4 paper. I went to the office supply store here in the US and they didn't sell the paper, so I cut down a few sheets and used those, but I need a few more.
1. How picky are they about the exact measurements of the paper? I'm pretty sure I'm close (within a mm or 2)
2. Can I use card stock? I have that in 12x12" that I can easily cut down here at home.