How to transfer pictures to new iphone?

I'm getting a new iphone at the apple store because my current iphone doesn't have Wi-Fi. How can i transfer photos to the new phone? Can the apple store do it? I'm pretty sure the verizon store can but i'm getting the new phone from the apple store and i will probably will have to give them my current one. What do i do? Are there any apps i can use to backup photos without using Wi-Fi?

Upload them to your computer