Two person house here, I just wash the dishes by hand. It doesn't take much effort, just a few minutes after a meal, they always come out exactly as clean as I want, and you can wash the dishes you prepped with while you cook (as long as it isn't an attention-intensive dish). It's also is friendlier to our painted ceramic bowls we usually eat out of.

Dish washers didn't seem worth it for two people in my opinion, either the dishes built up inside it and food dries on them to the point where the dishwasher didn't clean them properly, or I ran the washer with hardly anything inside it and felt like I wasted a lot of soap and water. Maybe it was simply too big of a dishwasher and that was part of the problem.