Blood doesn't last that long and you'd have to be able to anticipate your needs.
Donated red blood cells must be used within 42 days of collection. Donated platelets must be used within five days of collection. Plasma can be frozen and used for up to a year.Source
41 posted on 07/26/2011 7:20:09 PM PDT by newzjunkey
(Obama until 2017. It really could happen.)