Okay, *maybe* it's cheating, but I'm counting the window upgrade because, even though they're not in yet, I ordered them! We had two that absolutely needed replacement before winter, and with Menards sale, plus some "credit" slips we had from other returns, etc., we were able to go on and purchase two, to replace the worst of them. It is our goal to have them all upgraded within the next year, but two is a start! I'll take it!
The other thing I am counting, is that the water pressure pump in our house was extremely old and outdated, never mind that it was leaking water into its diaphragm, which was a waste of water. We had a local plumber replace it (to the tune of $792!! Ouch!!!). BUT, it is energy-efficient, and won't waste water, moving forward. Score TWO for the environment!!! :)