Wow, check this awesome snow shovelling tool out:
I haven't used it yet, but boy does it theoretically make a ton of sense. It's basically the same principle as a wheelbarrow, balancing the weight across the wheels, allowing you to stand upright and letting the wheels do a lot of the lateral work (instead of you and your back). This thing seems like a godsend for weary winter shovellers. It's also a good excuse to cut back on fuel-consuming machines, although I don't know how effective that will be until fuel reaches it's proper price.
You can get it directly from their site.
Here is a sweet video of the beast in action:
I have to say, watching this stuff is almost like porn for me. I wish there was a whole website dedicated to snow shovelling videos.