Checks Superstore supports the ASPCA American Society for the Prevention of Cruelty to Animals! 6% of the retail price from these items go to the ASPCA® for humane programs. The American Society for the Prevention of Cruelty to Animals was founded in 1866 as the first humane organization in the United States.  I still find myself writing check at least a few times a month – – so much for our paperless economy.