Blood donors in Sweden receive a thank you text when their blood is used

While it may initially seem kind of creepy, the fact that Swedish blood-donors are texted and notified when their donated blood is used is actually really cool. It lets the donor know when their blood is being used to help save another life, which is both a great way to increase blood donors and an awesome way to make donors feel good about themselves. In the United States, people are paid to give blood.