My problems are almost exactly opposite. I have flat feet, a long big toe, and narrow heels. When they measure my foot everyone thinks I should wear a medium, but mediums are always too short and too wide... Square toes help, pointy toes hurt!

BTW did you know there is a branch of archology that deals with feet? In Brittian, for some eras, they can pretty much be sure of which group a skeleton comes from due to their feet! This discovery was made by some archeologist's secretary....