I think the one thing that kind of worked was graffiti cleaner. I randomly found some at my store and when I asked my SM, he said to give it a shot. It worked better than anything else that I tried. Make sure to let it sit though, if you have any that is

They never come off, at least thats what ive found out. I would suggest maybe white a solid colour over the entire board then wiping that off, so it doesn't show words. It's wasteful but it gets the words off.

I used blue spray and magic eraser. I read somewhere that if you draw over the spot with a new marker and let it dry for a second, then scrub it with a magic eraser it comes off easier

Hand sanitizer gets everything off I swear by it

use the Sanitizer wipes.

Do you have magic sponges? Not sure if it’s just a UK thing but after scrubbing with every cleaner and cloth combination possible, I tried a magic sponge with a little water and sanitiser and it came straight off with no effort! You can get them on Amazon if your store doesn’t order them in

this is so sad now you can’t update the board with my drink

Blackboard paint is pretty cheap. Keeps the board looking new every change

Hand sanitizer. I used it to wipe my name tag clean

I use hand sanitizer

Wipe it with water first

I used cheap nail polish remover recently and it worked really well!

Vinegar

oven cleaner!! let it sit for 15 mins and then wipe off and wash in sinks

alcohol and a scrubby sponge

Before using ANY cleaners, wipe off the writing with water first, then only use cleaner where necessary. For some reason I always have more residue if I skip straight to chemicals.

Your sm can order magic erasers on the truck. They are called nonfood contact pads or something like that. Use those with graffiti remover and it comes right off