The other day my dad went fishing as it is a hobby and activity that he enjoys. He usually then catches a few which he then shares with family and friends. While that was pretty normal what was surprising was that he dropped by with a fish and like a bag full of green onions. Apparently in the area he was fishing there was green onion just growing around the area. So he thought he would pick some and give it away as well.
I thought it was kind of cool how doing a natural hobby that he enjoyed ends up being a way that he can essentially rely on money less in life in or ways than one. I suppose another example would be if you enjoyed things like hiking where you then choose to do it where various edible plants grow then you can essentially turn your hobby into a big money saver as well in that sense.
In a non-nature kind of way I kind of experience this with my hobby of liking to walk a lot funny enough. This naturally gets me to explore different areas and really understand where you can get the best deals around certain communities. It could be too that the things you naturally do for fun and enjoyment provide you with some kind of money saving benefit around you as well. It would just require you to think of all the ways to do so.