Anyway, she told me to stand up, keep one leg straight and in the same position on the floor as a pivot foot (dont move that foot she yelled!!) and then perform a lunce with the other leg in each direction of a compass (forward, backwards, right, left) it is trickier then it sounds and is incredibly difficult with weights as you wobble all over the place as you try and keep your form, but I think that is pretty good at strengthening the areas of your glutes, quads and hips that conventional squats and lunges would miss.
Worth a try?
I can't say for sure off the top of my head but this sounds similar to some exercises I believe I've seen from Johnson. I don't recall the use of weights but I do recall multi-directional lunges. I'd probably at least start without weights but I think it might be worth a try.