Removing Stubborn Dry Erase Ink

Everyone in the universe probably knows this already, but this map (from our Classical Conversations class) was like this for A WHOLE YEAR.  I didn't know what to do to clean it off--water didn't work, dry erase spray didn't work--and frankly I was too busy to be bothered, but I couldn't stand the idea of throwing it out. Someone who was 2.5 at the time did this lovely handiwork.....

Finally I googled it.  The suggestion was nail polish remover with acetone--which I have magically sitting in my bathroom closet.  It worked beautifully. I was so pleased.  Now we can use this dry erase map in our schooling--it doesn't look like the earth is being destroyed by hurricanes, tornadoes and hail storms anymore.

So satisfying.