Not in the mood for a real christmas tree, feeling arty, and happen to have loads of cardboard lying around? Why not make a christmas tree out of it? Here's how to do that. Tip: Try not to sit on your cardboard while measuring and cutting. Unless you like the knee dents, then by all means, go ahead. What do you need? 2 large sheets of cardboard (105 cm / 42 in high, and 80 cm / 32 in wide) 1 geometry triangle 1 long ruler 1 pair of scissors and/or 1 cutter knife 1...