IPhone photos to a memory stick without wiping everything?

I have recently been on holiday and I took lots I photos on my iPhone, that is only 8gb. How can I get them on to a memory stick without wiping everything on my phone.

Copy-and-paste as opposed to cut-and-paste.

First you need to copy-paste the files onto a computer, after that, copy the file that's on the computer to your memory stick. The disadvantage of iPhone is that it doesn't support an external memory.

Copy-and-paste as opposed to cut-and-paste.