Make it part of your house-keeping routine to delete all Cookies
None of them are for your benefit and websites only put them on your machine to benefit themselves, which I think is a damned cheek. It is MY machine not theirs.
If you are not doing so already, you should run a daily virus checker. A very good one is available FREE from Grisoft called AVG.
I just checked and I had a load of cookies. Bye Bye cookies, I don't want you on my hard disk thank you very much.
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Back the bid for the Olympics anwhere else but London