OP here...I'm not sure if it is the browser cache. I use Firefox, and I have it set to delete all of my "private data," when I exit the browser (which I assume the cache is part of)and also use Ccleaner after each season (set to DoD standards)(yeah, I know...I'm paranoid.) But if it is my browser cache (and for give me for sounding like a soccer mom here...)where is it originally stored on my hard disk? And...how would I store the cache on a USB stick?