New coins are minted after every 2 or 3 moves, depending on difficulty. You can keep tabs on them at the bottom of the screen (Red bar - 1 move, Yellow bar - 2 moves, Green bar - 3 or more moves) and strategize accordingly. If a column of coins reaches the top of the screen, you'll get a warning, the coins will flash, and you will need to remove enough coins to get back to a safe height. If you can't make a move, your game will end!
Using a food delivery service can’t necessarily earn you money, but it can help you save you money if you constantly find yourself throwing out half the food you buy. Food delivery services send a box of food every week with new, sometimes unique vegetables, meat, fruit, and so on. If you don’t have time to shop and want simple meal-prep that leads to a good meal, a food subscription service may be perfect for you.