What's the best way to 'make' A5 paper?

[ashishtrifid]

Have your A5 paper in the portrait position and reverse side up. Measure along the bottom edge of the paper and make a mark with your pencil at the halfway point. Using your ruler you need to line up the bottom mark with the top left corner and draw a line. Do the same for the top right corner. You should then have a triangle on your paper. Cut along these lines with your scissors or guillotine.