I bought a really good dishwasher 3 or 4 years ago. It has three wash types: Economy, normal, pots and pans. I use the economy almost all the time and I turn off the "heated dry". We washed by hand for 3 decades and then let the dishes dry in a dish drainer, so why spend the electricity for something the air will take care of for free.
I've learned what "crusty food" the dishwasher won't wash off. I put those dishes in the sink and fill the sink with water and let the water soak the "crust" soft. Then the dishwasher will take care it. If I happen to burn something on, I fill the pot with water and put it on the stove to boil. Then I scrub the burnt off. It comes off easier that way. But I don't wash the pot and then wash it again in the dishwasher. What a waste of water and money!
If you have a tight budget, worry about money, and wash your dishes before you put them in the dishwasher to wash, you are literally throwing money down the sink.
Good luck to you and yours.