I am a lifetime blood donor. I've been doing this since high school in 1987 (it may have been 1986, difficult to recall). One of our class officers was a volunteer at Miller Memorial Blood Donor Center in Bethlehem, PA, and she brought a blood drive to our school.
I was just a skinny, long-haired kid with a short attention span back then. As I came due for other donations, I drove to the donor center if we weren't having another drive at the school.