According to google it costs about $1200 per year to pay for books. This means $4800 per kid.

You have 4kids?

Nice.... You just reminded me of Robert Kiyosaki telling his friend to take the money he was saving for his child's education in the bank and invest it instead.... This was a great move for that parent because he had returns on his money and interest that finance his children's education plus extra

Your kids are lucky to have you