Donate it to a public bank which should be free for you and offers the best chance for the cord blood to help someone. When we asked a doctor what to do when having our first child, she explained that donating to a public bank is the best option. The thing that most people don't realize about saving cord blood in a private bank for your own use is that if your child does happen to come down with the type of disease (e.g. leukemia) that requires stem cell treatment, it is highly unlikely that doctors would ever use the child's own cord blood because the child's stem cells already led to a case of leukemia and so there's no way they want to inject those (potentially) flawed stem cells again.