I have 22 days to drive from San Francisco to Newark Liberty Airport in February. Route 66 would be ok or I could go across the north through Omaha; but the two cities I really want to see are New Orleans and Chicago and I'd like to spend 2 or 3 days in both of these cities. Is this feasible or a ridiculous expectation? I am comfortable driving 7-8 hours a day, then one day sightseeing or even 2x 6-7 hour days before a day off. I am after a broad experience of USA, not necessarily a gallery of greatest sights: Is this achievable or should I stick to the most direct routes?