Today I recieved my first 'real' potential client. Previously I have been doing online work for $5-$40 however now my portfolio has grown more and it is beginning to pay off.

I recieved an enquiry from a real estate business not too far away from me and I have setup an interview with them at their work. I was wondering, what do I need?

I don't own a laptop so I can't show them everything on my laptop so I guess its paper for me? Should I get a leather binder to store my documents? What documents do I need?

What software should I use to publish / print my documents aswell?

I have a pretty good printer and photo quality paper, I guess I use that for my portfolio?