All of you should check out Mr Money Mustache
You will love it.
I know I do. He used a middle class income combined with moderately high frugality to become financially independent by around (iirc) age 30. Now he has a very entertaining blog, as well as a very active forum (the only one I am on regularly)
In answer to the original questions:
I use cloth napkins
I shower, but I have an instant water heater and low flow faucet
I use a loofa
I use a pressure cooker (which is meant to be turned off early), and even before I got it I always turned off the heat in advance
I used to have the heat on a timer, but I haven't turned on the heat or A/C for 2 years now
I'm middle aged and live with my girlfriend, but I still smell test laundry
Live with girlfriend, no heat
We have one bowl and one plate each, so the dishes never pile up (we keep spares in storage for company)
I only plug in the TV when we are actually going to watch something - and it turns out when we have to take the effort to walk across the room to plug it in, we are almost never motivated to watch it! We went from several hours a day to several hours a month.
Not only do you save money by being "cheap" (most of us prefer the term frugal, or efficient, or just "not excessively wasteful"), but you massively reduce your environmental impact as well.
I wrote an instructable about it!
http://www.instructables.com/id/Not-...e-use-less-en/
And it doesn't just save a little money, you can literally get rich by spending a fraction of your income and investing the difference
Mr. Money Mustache | Early Retirement through Badassity