I was so born in the wrong decade. I LOVE the late 50's/early 60's styles. I have been shopping today and have found stacks of this style in H&M (beautiful, lined dresses that do not look H&M at all), and Zara.
Full skirts or pencil skirts, fine knits, matchy accessories and great shoes (not necessarily high, high heels for day time). It will feel full on if you are used to jeans and t-shirts. However, mix it up - dont wear it every day - and you will feel fabulous