Dave, I'm completely with you on the wasteful front. I hate being wasteful. All paper, plastic, cans, tins, glass and old clothes are shoes in my house are recycled without fail. Everything that goes in my bin is biodegradable. Mostly food left overs and things like potato peelings and paper wrappers.
Thankfully, times have moved on and we now have appliances like washing machines and dishwashers that use far less energy and water than washing by hand. I never run the dishwasher until it's full, and I don't do half loads in the washer.
When I lived with my Mum, I used to drive her mad going round switching everything off at the wall - the TV, phone and laptop chargers, computers, lights etc.
I'm also a member of the green team at work - we meet every few months to discuss new ways in which we can be more enviromentally friendly and also keep out outgoing costs down as a business. Not only is being greener kinder to our environment, it's saves money! I'm always telling my colleagues off for leaving PC monitors on, not turning air con and lights in meeting rooms off before leaving them, running the dishwasher full and on eco cycles etc.
The only thing I'm guilty of is using the tumble dryer too much, but I don't have any outside space at home to hang washing out, otherwise I wouldn't use it as much.