We were major doodlers in school, with meandering lines drawn on everything from notebooks to shoe soles. Maybe that's why these wall doodles appeal to us...

1 DIY doodling in a long hallway, by Kellie
2 Jon Burgerman at the Miss Sixty showroom in Amsterdam
3 A wall of individual doodles on paper, via The Doodle Off
4 Make re-doodling easy with a dry erase wall surface, via Living Etc.