I’ve been donating blood for just over 10 years and went for my quarterly donation yesterday. If you don’t donate already, please consider finding your nearest donor session and donating - most donations are done with a mobile team and are likely to be in a village hall or similar. It is a fairly quick and painless process and the National Blood Service is always in need of regular supplies for transplants and cancer treatment1. Not only do you get to save lives and have your blood screened for anything dangeous, you also get a cup of tea and some biscuits afterwards.
Take a look at the National Blood Service website to learn more and find your nearest donor session.