EDIT: US donors can find a place to donate here https://www.redcross.org/give-blood https://www.redcross.org/give-blood. Almost every modern country has a “wher

EDIT: US donors can find a place to donate here https://www.redcross.org/give-blood https://www.redcross.org/give-blood. Almost every modern country has a “where to donate” website. Long-time A+ donor here, not as long. Platelets donation takes time and uses a large needle, but can be done every week. Whole blood uses a smaller needle and can be done every 8 weeks. Private blood donation clinics tend to have better snacks and shiny new everything. Stanford’s main blood donation center was adequate but unremarkable last time I was there.