Hi, the shopping cart is a little tricky to navigate (I've heard from a couple of clients who foudn it tough with wedding shoots). Here's one of my client's feedback:

Just an FYI, I found Zenfolio a little bit tough because once you had stuff in your cart it didn't have the photo numbers so you had to go in and open a photo again in a new window to see the number (I went through to double check I had them all because I was missing one). I wrote the photo #s down, but the other thing was that you couldn't change the size of the photo once it was in the cart (or I couldn't figure out how to!). Not bad, but it was more labor intensive than I thought. Only telling you - not to complain! - but because I know you like to hear feedback on this stuff.

Please look into adding photo names and also allow the customer to change the size.

Thanks