Skimore-Workless. First, I like the idea your name suggests!
In some of the students, I notice that when they stick their butt out and hinge at the waist, that it is due to a lack of flexing the ankles or dorsi-flexion. One of the drills I use is when they are riding the chair, to flex their ankle and to pull their ski tips up towards them, using only their ankles. I have also noticed in some of the students, that there is a fear of falling over if they lean too far forward on their skis. One of the things I try is to get on my knees in front of the ski tips and to have the student put their hands on my shoulders and to lean forward emphasing a strong bend at the ankles. I then ask them to let go of my shoudlers, and show them that they will not fall forward by flexing the ankles and leaning forward. I then adjust their stance by having them bend their knees and waist. This is a general statement, but I ask them to visualize the angle of their ankles, knees and hips as they bend to be similar.
After I get them in a fairly decent stance, I ask them to simple rock back and forth feeling the pressure fore and aft on their foot until they feel the pressure evenly distributed on their feet. I found that for most situations, a balance on the whole foot seems to work best. Once I get them in that situation, I then ask them to visualize as if a steel rod were running through their body, and that when they flex and extend, the joints should flex in unision up and down on that rod, similar to a shock absorber. I realize that this is a generalization, but it is a good starting point. I also ask them to keep their head up. I notice that when some people look down at their skis, they roll their shoulders forward and bend at the waist
If the student has trouble flexing their ankles and knees, I look at their boots. They might have too stiff a boot, or not enough forward lean to the boot. I would suggest a trip to a good boot fitter for any skier who wants to improve their skiing. I ask them also discreetly if their ankles hurt and if they might have had any problems in the past. A good strength and conditioning program, that includes stretching and flexibility excercises (see some of LISAMARIE's previous threads), would be advisable.
Without seeing you ski, it is hard to give you a cure all. Ask for a lesson that includes video analysis. The camera doesn't lie, and is a really good tool so that you can see what you are actually doing, and what needs to be corrected. And finally, if you really want to improve, go the the next epic ski academy. You will find some of the finest ski coaches in the country to help you!