Firefox and Opera do not impede investigation, they just clear their caches correctly. IE has a tendency to leave some files (index.dat) behind when clearing it's cache, and that's great if you're trying to reconstruct browsing history.
However, there are plenty of methods to clear out the IE cache just as efficiently as the others, it just takes a little more work. If someone is going to cover their tracks, there's not a whole lot (besides reconstructing deleted data) that you can do to stop them.
SKU - Stock Keeping Unit.
It's what stores like EB use to reorder their merchandise internally. The standalone X-Box 360 will have one SKU, where the bundle will probably have another.
It's the x-digit number located below the price on the EB pricetag.
http://en.wikipedia.org/wiki/Stock_Keeping_Unit
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However, there are plenty of methods to clear out the IE cache just as efficiently as the others, it just takes a little more work. If someone is going to cover their tracks, there's not a whole lot (besides reconstructing deleted data) that you can do to stop them.
SKU - Stock Keeping Unit. It's what stores like EB use to reorder their merchandise internally. The standalone X-Box 360 will have one SKU, where the bundle will probably have another. It's the x-digit number located below the price on the EB pricetag. http://en.wikipedia.org/wiki/Stock_Keeping_Unit
Well, there's always Christmas of '06, right?
"VeriChip and Ruffles join, create new RFID 'chip'"