Wren, Harvard is one of the more affordable schools, unless you make a ton of money (and then you can afford it without aid).

https://college.harvard.edu/financial-aid/how-aid-works/fact-sheet

I have heard of some folks with only one kid or two very close in age joke that they would quit their jobs a few years before the kid goes to college and then work as a Wal-Mart greeter, making just enough to get by. This is actually not a bad strategy - make just under $65K a year and have the entire $60K COA covered.