Photographing background separate from the person

[Mary Sparrow]

I'm curious about how most of you handle your backgrounds. After reading some of the replies to Renees photography questions, I see that Karin, and I believe Chris at times, (correct me if I am wrong) photograph their clients with a plain background and then add in a different background.

How do you handle this with your clients? Do you just tell them to leave it up to you? Do you have different "types" of backgrounds from which to choose?

Thanks