Had a baby this year and I have a twofer:
- I got a used prefold + covers lot for $100. Cloth diapers seem more comfortable for the baby and they are way easier on the wallet.
- Woven wraps can be found used for $20-$80. A woven wrap is a baby wrap you can use from birth till they stop wanting to be held (35+ lbs). They are cheaper and more versatile than many structured carriers.