Three gallons
At lunch today I gave blood. The lady who setup my appointment said I should make sure and pick up my 3 gallon pin (which means I've donated more than 24 times). I actually earned it at my last donation, but figured I would save them the expense of giving me a pin - and I certainly don't require gifts to donate. But then it occurred to me that if I wear the pin then people might ask me about it and then they might donate.
But a pin can get lost and even if I put it on a coat or hat I won't be wearing it much so I figured I would blog it!
So let me get to the point...
You should donate blood -- and go for your 3, 5, 20 gallon pin(s). Then you should see if you can influence others to do the same.
-Matt