Thanks :) Of course, it is sometimes better and easier to buy things - use of appropriate resources and technology.
For example, making a depression for a big pond - I would rather hire an excavator which will do it in few hours instead of working on it for days and depleting an energy of human which can be used for intellectual work to pay the excavator.

This is an example of enormous help. 20% input, 80% output.

Steemit is wonderful. There are also other ways, as well.

For example Fiverr.com is really neat way on how to make money sharing experience, without need of leaving a home.

But also many others, such as Etsy with a large market - it is sometimes easier to start somewhere where the customers already are waiting for your product, instead of launching own eshop - which can actually drain a budget for a long time before first sale.

With a rich yields garden, one can actually sell leftovers. @gardenofeden can talk about it, I guess.

Lastly, barter is a sort of exchange usual in neighborhoods.