If you are a member of Recyclebank, you can now earn even more points by referring friends to join! Each time someone joins using your unique link (found under the "earn points" tab) you will earn 10 Recyclebank points!
If you haven't signed up yet, I highly recommend you do! Recyclebank is a great program that rewards you for recycling, and even if Recyclebank doesn't partner with your city (yet!), you can still earn points and prizes.
Disclosure: This post contains my invite link.