A good wide belt can create the illusion of a waist. I have a short torso and I use belts to create a more defined waist. Otherwise, I tend to look rather... large.
I wander around all day in scrubs...on my days off, I wear long tops and jeans. Lately, I've lost 25 pounds and am in transition in my wardrobe. I have 30 more to go, want to get closer to my target weight before I start buying new duds.