I'm pretty attached to Calvin Klein as a brand, but am especially fond of the Dolly shoe.  I have a number of these shoes in my closet and I'm constantly scouring Amazon for new colors.  Though I have, and wear, pairs in both sizes 10 and 9 1/2, the shoe runs about a 1/2 size big.  While I do make sure I break them in first, the smaller size fits better without slipping off my heel.  I'm a high school teacher and on my feet constantly.  The mid-height heel is incredibly durable and comfortable to wear all day.

I ordered a pair of hot pink patent leather shoes last fall and wore them so much I need to replace the heel tips.  I didn't hesitate to snap up a second pair (it didn't hurt that they were on sale) when they became available a few weeks ago.