-Donate blood
-Write a letter to someone fighting overseas (not really charitable, but how is writing to someone in prison) There is some organizations, i cant remember one right now, where you can do this, along with sending a 'basket' of things for a soldier, like simple things that are luxury for them - even as simple as some candy and or christmas card (at the time). We did this at my church once.
i cant think of any more now but if i do later ill say