I always thought I would be a breastfeeding mom. After all, almost everyone I knew breastfed their babies exclusively. Then I had my first baby and couldn’t make enough breast milk. So I switched to formula, thinking that was my only option. It wasn’t until I had my second child that I learned that combo-feeding — using breast milk and formula to feed your baby — was a thing. I also learned there are more than a few reasons why a combo-feeding mom is the BFF everyone needs.