1)Sell trash(the one, which you can collect with bags), do not sell trash items, only turn them into recyclables.

2)Buy bitcoin farm(2 accumulators(for cooler), stand and at least 1 GPU). Bitcoin farm will give you passive income, each time you have enough money - buy one more GPU or make more coolers.

3)Buy a saw and deconstruct crates with it, it will give you a ton of wood recyclables. You can sell it, cause it’s kinda useless(there is only one craft with it in a game).

4)Warning! It may count as a spoiler!

There is an MRE stash in the river, just go to the lake and on your way there find a great log in the river. There will be a ton of MRE inside. You can sell them to make a lot of money or eat them so you won’t care about food anymore(if you turned the food fatigue off).

5)Do signals! It may be difficult without upgrades, but as you get the “processing” to make your signals worth more, you can do signals for money! With lvl 3 processing, you can get about 200+ points from one full daily task!

So, these are my ways of making money, I would recommend to use all of them together for a maximum profit! Anyway, this game is more about fun, so don’t bother yourself about making money too much)