I always wanted the black dress that Kinsey Millhone had in Sue Grafton's detective novels - some no-name out of some synthetic fabric that she could pull on from a crumpled mess in her back seat and fit in anywhere.
I am not even a dress person right now - I've been living in jeans/slacks for the last several years. But I bought the ScottEVest Daphne dress (
https://www.scottevest.com/products/daphne-dress?variant=42345919578327 ) in black a couple of years ago, and it is so very close to perfect: Pockets! Hidden and zipped! Big enough for everything I carry! Flattering, even though I'm fat. V-neck that doesn't gap. And could be worn pretty much everywhere. (And stretchy knit - I could totally wear it riding! Uh, if I rode.)
But. The fabric is terrible. It's plastick-y and crazily uncomfortably warm even in cool weather.
It sits in my closet waiting for me to find a seamstress to copy it in any kind of decent knit. Meanwhile I found a black Land's End cotton-blend shirtdress that is also flattering, but not quite so versatile, and sadly doesn't have the awesome pockets. It will work for now.