Whether you have a baby or not, trust me when I say you need a $5 baby bottle scrub brush (fit with a rounded top and a long neck) in addition to your regular brush or sponge. It easily cleans drinking glasses, wine glasses, Chemex’s, pitchers, and the like without making you want to curse.
Is the interior of your Dutch Oven stained brown? Do you have burn spots on your stainless steel pots? Use Bar Keepers Friend, water, and elbow grease to remove. In general, try cooking with fats (oil and butter) at lower heats. If you're needing to char something, opt for a cast iron.