Are kids really that expensive? I guess it depends on your mindset and spending habits. Personally, I shop second-hand first whenever I need something for my son. Clothes, toys, strollers, and even some furniture in his room are second-hand. I love to thrift for his clothes but for online deals Facebook marketplace is my first stop. I frequently check apps like LetGo and OfferUp as well. Watch here to see how I was able to spend under $40 for 18 pieces of clothing!