More simply: "I conserve water, gas, and electricity."
Student or Learner
I don't use much water to save money. The same I do with gas/electricity and so on. Now I'd like to say that I don't use much water/gas/electricity:
1. I am economical with/about water and gas.
2. I am thrifty with/about water and gas.
3. I use water and gas economically/thriftily.
Which one shall I choose? Are all 3 wrong?
Thank you. But out of curiosity, what about my 3 sentences above? They are unnatural/good/formal/all wrong?
I'd use with in the first two. I wouldn't use the third; it's not wrong, though thriftily is less likely. However, something like conserve sounds much more natural.