A friend of mine (civil engineer) once repeated something a professor told him: "dilution is the solution to pollution." Take aresenic in drinking water. The current (as of about 2001) allowable amount was about 5 times more than the lowest measurable limit. To pit it another way, if you have one gallon of unacceptable water and add 9 gallons of arsenic-free water, you're left with 10 gallons of "arsenic-free" water in that its arsenic content is below measurable limits.
To put it another way, if you wash the same load in two machines, using the same amount of the same detergent, and both clean equally well, you've put exactly the same objectionable content in the water even if machine A used 12 gallons and machine B used 24. As has already been said, if machine B outlasts machine A and its replacement-machine C, what was green there? I would even guess that the older machine would be easier to recycle.
I don't leave faucets running or anything, but water is not something that's created or destroyed (in general). It's a looping system of rain and flow to oceans. The dirt and detergent are bigger deals than the water use. Don't let anyone make you feel guilty about using faucet water. Bottled water doesn't make sense if you have a filter pitcher anyway.
As for CFLs, I use and like them. I also don't believe that they're the least bit 'green.' Regular bulbs used to be made in the US, and would be shipped in minimal packaging the short distance to your store. CFLs are generally made in China or Hungary, packaged in plastic blister packs, and shipped halfway around the world where they still have to make the same trip that the regular ones did. They're heavier and require more materials as well. Use them if you like them, they might be 'green' by saving you a little money.