I see you don't have kids. Even with one, even when we tried to go as eco-friendly way as possible (including using washable diapers with washable paper inserts), there are limits.

Eco wash liquids are not as effective, so you end up sometimes washing twice (what's eco about that?).

Washable diapers are much less absorbent compared to regular ones, so its not an option for us for night - baby skin would be highly irritated the next morning. Same goes for more liquid poop - it would overflow very easily. And so on.

If you are en eco fanatic, then you can go that way, but in our case it would mean actively hurting our baby.