Maybe not on the regular basis, but I found writing on LCDs with a whiteboard pen helpful on numerous occasions
If someone, perhaps an age-impaired individual, draws on your awesome screen with a permanent marker, you can draw over it with a dry-erase pen to loosen the permanent ink.
If someone, perhaps an age-impaired individual, draws on your awesome screen with a permanent marker, you can draw over it with a dry-erase pen to loosen the permanent ink.