Gizmodo: Here’s an idea for number-crunching road warriors that might be even better: a USB mouse with an integrated calculator. This calculator mouse is a real, shipping product.
This $30 mouse is also an improvement over that numerical keypad because its screen shows you the results of your calculations, and you don’t need to use any of your precious laptop’s screen real estate to see that calculator application running, nor do you need to run any additional apps just to add up a few numbers.
USB Calculator Mouse Puts the Numbers Where You Need Them [Gizmodo]
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1st!
How can I get one in the US?