Todd, I have found that doing this really helps alot.
Go to Tools > Options > Filters > Keywords. Add These file extensions, Click apply and OK. .wma, .exe, .rar, .html, .com, .zip, .mov. If you find that you want to stop filtering an extension later, just remove it from the filter. Since I have done this I havn't seen any of that Bulls**t in about 8 months.