There are several devices on the market that will do what you want.
However, the price for the device exceeds the price of a bunch of extra memory sticks.
I have not seen a solution that does not cost more than buying more memory for the camera.
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what is the best way to store your pictures on a trip? i want to take just 1 memory stick and transfer my pics onto some thing so i can always take more. what should i store it on and how should i go about doing this?

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