Even though I keep my Temporary Internet Files' limit set to less than 50MB, I somehow seem to find way, way more than that elsewhere on my PC time & again. I think I'll give this article a read to see if they've found something I haven't....

"A little bit of time invested into learning about internet security can go a long way in preventing mishaps on your computer. Temporary internet files are not something we should be afraid of, but we should certainly be careful in how much we trust them and how we deal with them."