I love using seamless paper for a background. I have lots of different ways that I use seamless paper and I always keep plenty of different lengths and colors on hand. Over the years I found that the papers I use the most are my 53″ white, 53″ black and 53″ grey seamless papers. They are perfect for product shoots and they make a great background on portrait shoots. The 53″ length is a great size for a single person or a couple (even though you may need to fix the edges in Photoshop) and you can easily set it up by yourself. 107″ wide paper rolls are the ultimate, especially for large groups, but they can be a bit difficult to take out to locations. I use 107″ rolls of paper but I usually shoot individuals and couples so 53″ wide has always worked fine for my location work.
My favorite thing about 53″ rolls of seamless paper (besides it’s portability) is that they’re crazy cheap. 12 yards of white seamless paper runs about $25 from B&H photo and I use white paper a lot. With a roll of white paper you can create a white, grey, black or colored background (depending on how you light it) so it’s super versatile.
But just having rolls of paper won’t do you much good if you don’t have a way to put it up.