Not sure whether I have a coherent set of principles (I know I can think of plenty of exceptions!) but if I do, they are to reduce the impact on the planet of how I live my life, to support British farmers (many of whom I think are in a difficult situation) and not to encourage outright exploitation.
I am bothered about my health, but the difference I can make by taking exercise, not smoking and eating a balanced diet is much, much greater than the difference I can make by the decision to eat organic/never to touch McDonalds, IMHO.
So to answer your questions
Do they smoke/live with smoker? No/No
Recycle? Yes - and compost.
Use public transport where possible? Yes. Walk/cycle to work
Use chemical cleaning products? No
Live in inner citys where pollution is a big problem? No - small university city
Buy local produce? 50% of time
Wear Fur? No, but I do/did hunt (different perspective on the animal welfare issues involved than the majority of the population, I guess)
I buy organic meat through a box scheme, have my own veg patch and buy british organic veg when available in the supermarket. Otherwise it's whatever British veg is available.
I also eat fast food on an occasional basis, drink too much and have been known to take recreational drugs. Worse than that, I have provided non organic sausage rolls and sweeties at a kids party.
Now you know my darkest secrets!