I have limited space and also like the portability of collapsible backgrounds. So that's primarily what I use. I use the Lastolite HiLite for all-white or solid color backgrounds (with gels on the lights), and I have collapsible backgrounds from Bolero, Lastolite, and Denny Mfg. The Lasolite 6'x7' with trains are pretty pricey but good quality. The ones I have from Denny Mfg are also expensive, but you kind of get what you pay for with these. The Bolero versions are less expensive and definitely of lower quality...but in a pinch, they're fine. If you're going to do a lot of full-body portrait work, you might consider something else like white seamless...or a collapsible background with no train and something less expensive for the floor (white tile board, fabric from a local fabric store, etc.).