I am so lacking in knowledge that I don't even know how to properly title this thread...

Here's what I want (need) to do:
Premise: you're on a lengthy hiking vacation. no consistent or easy access to internet cafes. no computer to use. but you do have occasional access to AC/electricity while in a motel or B&B...
Is there some way to take the (full) SD card from your camera & copy the contents to another SD card so you can have a reliable backup? Without a computer?
Then you could mail one set of copies home, and keep the other set stashed with your 'main luggage' for the return flight?
There's gotta be some way to do this, right?
