Of all the things I’ve ever donated in life, giving blood has been the easiest. It causes me no financial pain and yet it still does a world of good for those in need. What I give is naturally replenished in my own body, causing exactly zero discomfort to me. Finally, as an added bonus, it’s a donation I’m happy to give knowing that someday I may need it myself. In fact, I only have one regret when it comes to donating to Canadian Blood Services, and that’s cord blood. Knowing the good it can …