Well this seems to be a super old thread, but it was linked in the daily email, so....
I will add my bit.
I actually gave away pretty much everything I owned when I was 19. I lived in various places and worked where and when I felt the need. I didn't live without money, but I lived with a small handful of possessions. A few changes of clothes, a kettle, a radio. That was about it. The reason I needed money was for shelter, and for food. And because of this need, my soul did not feel at ease, I didn't want to be part of the rat race, or work 9-5 for the boss.
So when I met someone a few years later, who had bought and renovated an old ruin, and was attempting to grow their own food, I was very interested, and joined them to help with the process. We put in our own water supply and sewage, and we lived without electricity for many years. We worked on the land, and were lucky to have a lot of local stone and slate readily available to build and work with. (this is how I got into permaculture).
But no matter how hard we tried, for many years, we never managed to totally do without money. We lived on very little, but we never lived without any. Tools were the main thing we needed. None of us had any skill with smelting metal, and although I often used pieces of slate, attached to sticks, to hoe with, and other makeshift things, we needed saws, axes and so on, just to cut firewood to keep warm. Now a purist would say, all metal items can be replaced with flint, slate or pottery. And in theory this is true. But not many people in the modern world have the skill to make these things, or even the materials. Candles were another thing we never managed to have enough of, without buying them, even though we had several bee hives, but we could have expanded that. I did learn an amazing amount of skills though. I learned to spin, weave, make baskets, make flour from acorns, bake with the most random ingredients, forage for wild plants, treat basic ailments with herbs, make tinctures and infusions, grow stuff and save seed, take cuttings, make clay from what I dug from the earth, fire pots, work with wood.. the list goes on and on...
So my eventual summary on living without money, is that it is possible, however it is very very hard, and mostly it is hard because we don't have communities of people who are making different things to trade, but it is also hard because we can't run machines without fuel, or create them without metal, and although it is possible to make things with clay, wicker, twine and wool etc, it is super time consuming. Buying machine made things is something we have come to rely on very much in the modern world.
So eventually I opted for making a small living from my art. It is something I love to do, and also something that I managed to get a regular income from, but it doesn't take up all of my time, and I can work on my own timescale, as and when I feel the need. I use my small amount of money to buy things that I can't make, and that I do need.
And now I have quite a lot of things which I now call 'luxuries'. I have to admit, electricity is great, I love being able to read with an electric light, I love the computer/internet, I love my washing machine. Those are the things I missed the most, when we lived more frugally. But the things I miss about those early days, are the peace, it was so deeply peaceful. And also I miss the challenges, every day brought a new challenge, and I found it so invigorating and honestly satisfying to solve each one. And there are a few things that I never went back to, even after having more money again, television, dishwashers, soap, detergent, a car, to name but a few. Because some things we think we need, and we really just don't need them at all.
So I guess my take on this whole 'living without money' thing, is yes.. it is possible, if you want to give up a lot of the modern things we take for granted, mostly those related to electricity. Of course it is possible, because all human beings lived without money a few hundred years ago anyway, and they lived perfectly happily. I would recommend to anyone, who has never tried living with very little, to do it for a week, or a month, or a year, just so they can appreciate what they do have more keenly. But it is certainly not easy, and I would personally recommend that living more frugally, and naturally, is much better than trying to live without money altogether.