Two days ago I had to get my shopping done. This time I went to Carrefour. Before entering your temperature was taken, but there was no limit on how many people were in the store. Although you cannot see it in the picture, it was busy, however, standing in line for the check outs everybody was keeping at least 2 meter distance.
The check outs had screens here too, only they did a much better job than the other shop - here are no big stickers, and it seemed to work. (You can see my other picture with the screens that were awkward http://365project.org/ingrid01/365/2020-03-26)