Store incentive's for "going green"

Many companies offer recycling programs and other incentives to help you make the green choice.

 Earn prizes and rewards for doing the green thing when you register with Recyclebank!


Costco: swap laptops, cell phones, cameras, MP3s, Blu-Ray discs, games and more for a Costco Cash Card. Visit the site for more information.
MAC (cosmetics): return 6 packaging containers to a counter and receive a free lipstick through Back to MAC.
Staples: recycle ink and toner cartridges for $2 in Staples rewards.
Starbucks: bring in your own mug and receive a 10c discount.  Enjoying your morning coffee in-store.  request a ceramic mug instead of a to-go cup. Learn more about Starbucks environmental efforts on their site.

What other companies offer incentives?  Share the information in the comments and I'll add them to the post!