I use a Peets Coffee (like a Starbucks, if you've never heard of Peets) around the corner from my condo - legally I can't meet people at my house. Anyway, I've been doing consults there for over 2 years. I bring my own platters, forks/knives etc and I set up in plain view with cake samples, my ipad rotating my portfolio images, and samples of my sugar flowers, a printed menu etc.all on the table. My deal with Peets is I always order a beverage and guarantee each person will order a beverage when they get there. Never had a problem with someone not ordering a coffee or tea because everyone does. Sure, I'd love a more professional setting but I try and class it up as much as I can.
Edited to add: and I always bus my own table after people leave. They've never asked me, but I do anyway just to keep relations happy.