Don't know if you have magic erasers there or not but they work wonders! And for really subborn spots I get a Q-tip and put some Goof off on it and lightly and carefully rub marks off. Good Luck!
I don't have a magic marker but I think I'm going to get one soon as that will really help with cleaning up marks.
I use nail varnish remover (the stuff with acetone in) and a cotton bud/Q-tip. You need to be careful though as it the acetone will also take off paint.
Already tried it but it didn't work
I usually find nail polish remover good for removing marks though.