I highly recommend this book. I set out to learn how much allowance to give our kids but there are more valuable lessons here about teaching them to save, donate and spending wisely. Surprisingly kids tend to get better grades if they work part-time. They get better grades in college if they are financially invested. Letting the kids get a phone and a car when they can afford the monthly expenses makes sense but his idea to let the kids rent your spare car is ingenious!