From the Soldier side: When I was in Iraq, one of the things that really made our day was when we got a pacakge from somebody. The ones I really enjoyed had coffee in them.
A good citizen is trying to send lots of post cards to the troops. So please check out: (corrected link)
The Operation Postcard link is here http://wordsforwarriors.blogspot.com/2010/09/operation-postcard-contest.html
and help out if you can.
Here's what I came up with for a postcard: