Bee,
On my home PC I copy all our data folders onto CD-ROMs.  I also have a 1GB thumb drive that I keep all my data from work on.  Our company gave everyone in Information Services a 1GB thumb drive.  
What I need to do is scan all my important documents and burn them onto CDs.  My wife suggested that having personal information on a thumb drive that you can lose is not a good idea.  However she thought a thumb drive with important documents in a secure place in the house was a good idea.  If you had to evacuate you could easily keep the thumb drive with you.  
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Thermo-regulate, hydrate and communicate.