Paper is the universal chameleon. Copy sheets become screens, envelopes become pockets, index cards become interactive tiles. Tape acts like reversible logic, letting you try branching states without fear. Favor temporary joints so you can iterate relentlessly and keep momentum without the drag of preciousness.
Cardboard offers thickness, edges, and weight that reveal ergonomic truths fast. Score, fold, and laminate layers to suggest volume and strength. Learn which grain bends, which tabs lock, and how gussets stabilize corners. Structural tricks let you mimic hinges, sliders, and latches without special tools.
A safe, tidy surface and a few habits protect both people and prototypes. Cut away from your body, cap blades, recycle offcuts, and sweep frequently. Keep beverages distant, label sharp tools, and set clear stop times. Safety supports playful focus and faster collaborative iteration.