Are you aware of this program?
You just use smile.amazon.com instead of amazon.com when you login and they'll take .5% of your total purchase and donate it to a charity.
You select what charity you want their donation to go to the first time you use it (but can change your charity anytime) then your purchases when you signin using the smile.amazon.com are eligible.
Details here
https://smile.amazon.com/about/?ref..._rd_t=301&pf_rd_i=amazon smile&qid=1424869952
You just use smile.amazon.com instead of amazon.com when you login and they'll take .5% of your total purchase and donate it to a charity.
You select what charity you want their donation to go to the first time you use it (but can change your charity anytime) then your purchases when you signin using the smile.amazon.com are eligible.
Details here
https://smile.amazon.com/about/?ref..._rd_t=301&pf_rd_i=amazon smile&qid=1424869952