Pt. I. The basic tools. A preliminary remark : water and friends -- Matter falling out -- Give and take -- Burns night -- Back to basics -- Two hands clapping -- Electric occurrence -- The generation game -- The death of metal -- Civil partnerships -- Changing partners -- Marriage broking -- Divorce and reconciliation -- pt. II. Assembling the workshop. Stringing along -- Snapping together -- Missile deployment -- Electronic warfare -- Fasteners -- Zippers -- Adding up -- Taking away -- Carbon footprints -- Networking opportunities -- pt. III. Making light work. Dark matter -- Irritating atmospheres -- Seeing the light -- Green chemistry -- pt. IV. Building by design. Food for thought -- Grand designs -- pt. V. Economizing.