Yes, we have all tried nearly every method of gaining a bit more stability but still maintain as much portablity as we possibly can. Monopods, tripods, the wife`s shoulder, a tree, a wall, the car roof etc etc.
I found a fairly neat solution recently made by Manfrotto called a belt pouch, basically you slip your belt through the well made imitation leather pouch, position it towards the front (to one side of the buckle) shorten the length of your monopod so that when stuck in the pouch the camera is at eye level. Surprisingly, it works quite well but you are still left with maybe 18" of monopod hanging on the end of the camera and of course in my case (wearing braces)I have to wear a belt as well( hence the old saying belt and braces maybe:-)
So, it works fine and gives quite a good amount of support (at least as much as a monopod)and you can if you wish walk around with the pod in the pouch and just support the camera.

Still not satisfied and always looking for better more suitable ways of supporting my cameras I remembered that I had an old Leica tabletop tripod complete with extension ball head from the days before I had my own small studio in the garden. After much swearing and cursing trying to find it I finally managed to locate it in a cupboard under lots of other odds and sods. Below are a couple of images showing(roughly) the pod in use(you can move /or reposition the legs at any angle to fall in line with your shape. Slimmer photographers will easily be able to have the main longest leg over the shoulder and then just reposition the other two legs either spaced evenly out or keep them close together.

In my tests I found that results were somewhere between a mono pod and a tripod. In non wind conditions I could get good results down to 1/15th of a second. On top of this being a decent walk about solution and because of the extended ball head section it also serves as a pretty good tripod that easily supports my 1 series Canon cameras. When walking around and having the Canon E1 leather hand strap fitted to all of my cameras I just let the whole assembly hang down at my side from my hand,(surprising just how secure the hand straps make carrying these cameras). I tend to wear a domke photo vest with my lenses and other bits of kit in and I carry a cheap canvas bag over my shoulder to carry larger items and to give me somewhere to stick the camera if the weather turns nasty or I stop off for a cuppa. This way, with the bag hanging on my right hip I can just throw the camera strap on my right shoulder and let the whole assembly settle on and rest on the bag. The pod I have is made by Leica and is still available as the same pattern. Not as cheap as many commercially available table pods but like most things in life you tend to get what you pay for and at least the ball head can easily hold the weight of my 1 series camera without needing to tighten it up with a monkey wrench. Dave Chilvers