I booked a private tour with a prepackaged itinerary that included many of the major monuments we had not yet seen (in fact, the itinerary also included some of the sights we had already seen, like the Jama Masjid and a rickshaw ride) Upon meeting our guide, I mentioned we could skip the stuff we'd already seen (mostly in the "Old Delhi" neighborhood) and just focus on the rest of the itinerary.