The only time I use a strap is when I am shooting outdoors and hiking. Other than that, they just get in my way.
I have seen small straps that go around your hand like what you would find on a camcorder but still.....When shooting content sets, I tend to move the camera from hand to hand then from portrait to landscape, and I also switch between multiple shutter release buttons.
Consider how you shoot then decide which strap, if any, is right for you.
