If you notice a woman spying a cardboard box near a trash bin, it's probably me :)) Be serious, I love crafting with cardboard, it's so inexpensive but the result can be amazing.I would like to share my last-minute Christmas decorations idea that didn't cost me a penny because all materials were at hand. You'll need - brown cardboard box, - white gouache or acrylic paint,- craft/x-acto knife. I'll show you how to make a Christmas tree and Christmas deer.Step1. First, I make a Christ…