Donating blood. Since I'm O negative, the local blood bank makes chasing me down every 2 months a major priority
I'm at 24 donations. My ex was in a car accident and used 25 units in the first day. I made a promise to replace them. Technically I'm already at 25 but one wasn't counted, I'm not sure why. So Nov I finally hit that number. After that I donate for me.