Leaky buildings and warm houses

I'm renovating my own house (oops that should say 'our') and its interesting how much I've learnt along the way, from being able to lay a slab to putting purlins on the roof... Whilst doing all of this it did become very clear how easy it is to cut corners, which would invariably lead to water ingress or to a colder house.

What are the biggest mistakes I see with the whole leaky building thing :

1. We live in a rainy country. We need angled roofs and fat soffits!
2. Its an earthquake zone. Cladding needs to reflect that.
3. Never design a roof that pitches into the house, always make natural runoff fall away from the house.
4. Its a windy country. Forget just building wrap+cladding. Put in a solid moisture barrier like RAB or ply over wrap (its an earthquake zone remember) with a batten system followed by cladding.
5. Ventilate the roof. Keep those eaves clear of insulation and, in monopitch design, leave that ventilation gap and either do rough sized nogging between rafters or drill some ventilation holes out to soffits.
6. Ply sarking. Its a great solid barrier to the outside. Keeps cold/hot of tin roof at bay.
7. Lets get New Zealand out of the 'aluminium is king' way of thinking. We have finally moved into double glazing - wow we are now in the 70's at least. Wood really is still king, the debate is still raging over plastic windows - our ozone depletion may affect them adversely yet.... We love our windows and doors, and we should be able to 'have our cake and eat it' in that department if we can get to European standards...
8. Fill the walls with insulation! If you have 6x2 timber, fill the whole width with insulation, not just half of it.

Gosh I prattle.