I heard several versions: just any white floor, paper, or a piece of textile. In any case, there are pros and cons. Some of them I use personally. Floor
: blinks can appear as a result of a lamp reflection. On the other hand, there will be no shadows caused by any creases.
: Everything is brilliant about this case, except that not always sufficient brightness will be as paper absorbs a lot of light.
A piece of textile
: It is bright enough but undesirable shadow and creases might appear when you place something heavy on it – of course if your base is not a solid one.
The indispensable condition is having a plain solid base in order an object not to come down and create needless creases. Even if they are invisible during taking a picture, you may find them later when processing the file with the image editing application.
What backgrounds do you use?