Right now at GreaterGood Network sites, when you spend $50+ you get 1 cent shipping. With each item purchased, you help money to go to good causes. I usually do my shopping on the animal rescue site but there are many in the network to choose from.
The sites include:
Even if you can’t buy anything (though if you can you should definitely go look around. They have some great stuff!) you can help by clicking at each site every day. Click here for the animal rescue site FAQ.