You should have plenty of dishwashing detergent for the dishwasher & liquid for the sink.
However, if you choose to do laundry, you might want to bring your own laundry detergent, dryer sheets, whatever you use. You will get one small box of detergent. I save small plastic soda bottles & fill them with my liquid detergent. When the bottle is empty, I recycle it at WDW.
You will get a bar of soap for each bathroon sink (two) & a bottle of shampoo, but we bring our own soap & shampoo from home. I bring home the unopened Mickey ones & donate them to a local homeless shelter.
I also bring some extra baggies for various odds & ends that I collect during the stay.
I don't do much cooking, so others who do cook, can give you an idea of what they bring.