You can register your Payless or Kroger rewards card and help MNC when you shop for groceries. Go to www.pay-less.com or www.kroger.com and create an account then add your rewards card number. Go to the "Community" section to select an organization. My New Cat Rescue is under the "Animals" category.
Use Amazon Smile
Go to smile.amazon.com and pick My New Cat as your charity! Then make sure to always shop from smile.amazon.com