One of the most potentially toxic and expensive things we use daily for our children? Diapers.
My daughter was given Pampers in the hospital and reacted immediately in a skin rash. A friend sent me her entire stash of Alvababy cloth diapers and inserts and I eventually bought more, and from there I began our journey with cloth diapers! It's a non toxic, environmentally friendly option.
I use biodegradable liners to deal with "solids", and spray out in the shower. I place in a pale and wash usually every other day. There are plenty of brands to choose from, I use Mama Koala and Alvababy, both are really good quality.
You can soak the inserts in baking soda and vinegar before and I like to wash my inserts in the sanitary cycle.
Another option is bamboo or biodegradable diapers, but those can be costly and are hit and miss.
Here's a link to cloth diapering basics