I have given blood a number of times. And I'm an O- so I'll be saving everyone's lives with my universally accepted blood.
I get special letters encouraging me to donate more because I'm such a special snowflake. Reminding me that my blood will be saving thousands of premature babies, etc. Emotional blackmail. ._.

I ticked the organ donor box on my driving license thing.

I also want to look into platelet donations. I hear that's something people want too.