I was away with my hospital for few weeks and we got back last night. The best thing to have with my was my digital camera with 500 MB of pictures of my friends, family and places I love. I'm not very organized person when it comes to my computer files and pictures so I have "junk" images all over the place but having camera full of smiling faces was a blessing. After hard day of work looking at them made you smile and you just imagined how it will be when you get home. I missed my family, I missed my dog, my friends and kinda missed my girlfriend even if I was away for just 2 weeks. I just can imagine how much help would it be to have pics of your loved ones in a really hard situation.
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Matt
http://brunerdog.tripod.com/survival/index.html