Draught proofing 
How to use - hammers & nails - screwdrivers & screws - cross cuttting & mitre saws
How to fit - vinyl draught strip - letter box & door brush - expanding foam filler
Building principles - air infiltration - thermal stratification - cross ventilation

Insulation
How to use - more hammers & nails - screwguns & drills - rip saws & jigsaws
How to fit - loft floor & wall insulation - pipe & cylinder lagging
Building principles - convection, conduction, radiation - thermal mass & u-values - condensation & vapour control

Water
How to use - wrench - grips - seat cutter
How to fit - low flush toilet - change a tap washer - water butt
Building principles - Water meters & service valves - potable, rain, grey & black water - compost and the carbon cycle

User control
How to use - infrared thermometer - humidity meter - common sense
How to fit - thermostatic valves - locating & destroying filament light bulbs - stand by, washing machines & fridges
Building principles - energy - temperature differential - turn it off, turn it down, maintain it & improve it

Hemp & Lime
How to use - sourcing - mixing & applying
How to fit - lime mortar & lime render - lime wash - hempcrete
Building principles - breathability - hygroscopic - ventilation

Green roofs
How to use - neighbours - planning permission - building control
How to fit - epdm rubber membrane to FLL greenroofing standards - extensive & intensive planting - rainwater harvesting
Building principles - sustainable urban drainage - biodiversity & food - evaportransporation & the urban heat island