One of my favorite ways to save at the grocery store is to use a coupon for $10 off a $50 order from Recyclebank.

That's a 20 percent savings with just one coupon. That's $10 you can spend on something else. Or $10 you can save.

Not familiar with Recyclebank?

I wrote about Recyclebank HERE around Earth Day, but it's worth a recap.

Recyclebank is a free online program that rewards members for pledging to be more environmentally aware.

Through a points system, Recyclebank members earn coupons, gift cards and merchandise from companies like Kashi, Harris Teeter and Home Depot.

Environmental advocacy organizations that were among the staunchest critics of the corporate merger between Duke Energy and Progress Energy have agreed not to fight the $26 billion deal in exchange for sweeteners that could be worth millions in electricity savings.

The agreement will require greater commitments to energy efficiency, pushing North Carolina's conservation goals to higher levels. The state's current green energy mandate -- which requires that of 12.5 percent electricity sales be met through a combination of renewables and efficiency programs by 2021 -- would likely be exceeded under today's agreement.

The last-minute agreement was announced this afternoon, the same day public hearings on the merger got under way before the S.C. Public Service Commission.

Do you know if flushing a dead fish down the toilet hurts the environment? Or how about when the first solar panel was made? If you're interested in learning or even providing the answer, you can do just that at Greenanswers.com.