If there one type of item in my closet that I wear the most (other than undergarments) it is definitely a cardigan. I am pretty sure I wear one at least 3 times a week and often more than that. I wear dresses or skirts most days to work so I just throw a cardigan over whatever I am wearing and head out the door. You never know what the weather will be inside my building so having something that I can easily take off as the inside temperature changes is great.
Over the years I have gotten my cardigans at various different places but my favorite ones at the moment are this one from The Loft. I have it in black, navy blue and grey in addition to some fun colors like pale pink and a nice teal.
Another item that I wear almost everyday is my ballet flats. Over the years I have had too many pairs to count. I always try to have a black pair and some sort of other neutral pair (usually either nude or silver) in my rotation.
Once I have my neutral pairs taken care of then I like to throw in a few fun pairs like stripes or sparkles. My shoes have a habit of all dying around the same time and then I am left scrambling to find new pairs and break them in before my old pairs actually get full on holes in their bottoms. I always wear out the bottom of my shoes first and usually right in the front near my big toe. I think it is the way I walk but I can't do anything about it at this point.
The other bras in my collection that get a lot of use are my sports bras. I wore my favorite Wacoal one for years and this year I added a new Chantelle one to my rotation.