Fingermarks? Go into an optician's shop and buy lens wipes. My favourite for spectacles and smartphones are Zeiss brand. If you are in France there is a brand available in l
es magasins Carrefour that I like too, in a magenta/purple packet (sorry, none to hand to check brand name).
Be careful though, there are things available in similar-sized packets that will leave nasty smears Click to expand...