You can do some really cool things with cardboard. I used to make ship models out of it when I was younger.I’m not sure my hobbies are keeping me sane or actually a sign of me becoming a bit of a recluse - I’m now making houses out of cardboard. I’m hoarding food packaging, convinced I can utilise everything. Before this however I learnt how to make inks from the natural environment, which progressed to making natural paints. So obviously from there the natural progression was to start making cardboard houses. Please send help!