Amazon Smile is like shopping at Amazon, only it adds donations to a charity being given by the AmazonSmile Foundation. For an overview of Smile, you can see their web page, About AmazonSmile (https://smile.amazon.com/gp/chpf/about/ref=smi_se_rspo_laas_aas) .
When you create an account, they give you the opportunity to identify the charity you would like to support (you can change this anytime later too). Choose National CFIDS Foundation, Inc.to support their good work. To learn more about Chronic Fatigue and Immune Dysfunction Syndrome (CFIDS) go to National CFIDS Foundation, Inc. http://www.ncf-net.org/index.html.