Also, you can save money on booze
There are several good reasons why you should donate blood (if you can). Your donation could end up saving a life, which is a gift in and of itself. But if you sell your blood, you’ll have some money to spend on booze. And the less blood you have, the quicker you get drunk.
Also, it’ll take fewer bottles of beer to get drunk because you donated blood. This means you’ll have more money for other things, like traveling to other blood banks to donate more blood. Repeat the cycle ad infinitum and you’re set for life! Granted, your life will be significantly shortened, but there’s no time to think of the small details!