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Wayne Ruffner would like a solution for an effective mosquito repellent application.
And Kevin Kelly is wondering if any readers have experience using T-Mobile in other countries.
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A cool tool is anything useful that is superior to comparable items. If you think this tool is inferior suggest a better one. You are welcome to insult a tool, but comments containing insults to individual people will be deleted. Corrections of fact are always welcomed, if stated politely. Recommendations of better tools are dearly wanted and may be elevated to the front page.