My family and I have been using an alternative currency for a couple of years, now.
Our house is in the middle of a very large property, in fact we own a wood. As you can imagine, the trees need to be taken care of, in the sense that they often need to be cut when their branches enter a neighbour's property or when they fall.
The person willing to this work for us is a local farmer. He has a very old boiler, that does not function with gas, but only with coal and, preferably, wood. So he does not ask for money as an exchange for cutting trees, but he simply requests the wood he cuts, so that he can take it home to burn to heat up his house. This does not only happen during the winter, but during the wh*** year. In fact, the wood that the farmer manages to collect during the summer is stored so that it can be used when needed.
Here are a couple of photos: