First, visit smile.amazon.com to get started. From there, you will add us as your selected charitable organization. When prompted, search for "watcvm" and select "World Association of Traditional Chinese Veterinary Medicine":
Then, shop as you normally would. You only need to select your charity once, Amazon remembers your choice.
PLEASE NOTE: This program ONLY works if you shop using smile.amazon.com so make sure you update all of your bookmarks!