I used the Belly Bandit, yes the kind you get at Target or whatever. It was great - made me feel non-jiggly as others said. I'm not sure if it was the band or the combo of band/nursing/lack of sleep, but my abdomen was downright slim within 2 months. Skin is still catching up, but I would recommend the band anyhow for support & comfort. As rabbit-trail said, you need something quick & easy to put on, as you will not have a whole lot of time at first.
Also tried the Medela band, but it would slide around & bunch up. Material was too slippery.
Welcome to baby JMoto
Jen, former Midwesterner, living in the middle of nowhere.