Diapers have become the biggest part of non-recyclable household garbage.
One way to avoid them is to potty train as early as possible (without pressure, of course). In the 1950s when nearly all kids used cloth diapers, 95% were potty trained by 18 months, but now that nearly 95% of kids are in disposables, only about 10% train by 18 months and many wait until 3 or 4 years.
In this video, grandma Emily Dirksen and mom Kirsten introduce the 16-month-old faircompanies baby to the potty and to her own business. Warning: nudity.