> I go through a 64 gallon trash bin a week.
That seems absurdly large to me.
64 gallons is 250 litres. We're four and we use about one 30 litres (8 gallons) bag for "rest" trash per week (everything not recyclable, including diapers which take a lot of space, so hopefully soon we can at least halve that trash volume) one 30 litres bag for recyclable plastic/metal every two weeks and maybe one 30 litres bag for compostable stuff (mostly just vegetable and fruit peels from cooking) every two weeks or so.
That's about 60 litres or 15 gallons per week for a normal-sized family. I can see some of my neighbours having somewhat larger bags, some with smaller bags, but I feel like we are mostly average for our area (in Belgium).
In fact, a quick search tells me that Belgians have produced on average 683 kg of trash per year in 2022, which comes to 13 kg per week per person and seems rather consistent with my numbers.