There's a duo in the US that uses a songbook and stand, but make it part of their performance. It's their original songs, which are very humorous. You pretty much don't notice they are using it after awhile. But they also don't fumble around looking for things. The act is Peter and Lou Berryman, and they are well regarded.
   I also noticed that Richard Thompson used a song sheets for his 1000 years of Popular Music program. Again the music was not in the general sight line of the audience and there was no dithering between songs to find the next one.