Four houses, three of them within a walk of the Parc Monceau, and not a queue among them.
Not a Tuesday. Never a Tuesday.
Camondo and Jacquemart-André are eleven minutes apart on foot, and doing both in one morning is the single best hour-and-a-half this directory can offer you. Do Camondo first; it is the quieter house and deserves an undistracted eye.
Moreau is across the river in spirit but not in fact — a twenty-minute walk north-east, and worth saving for a wet afternoon when the drawing cabinets feel like shelter rather than showing off.
The city pass does not cover the private foundations, which is where everything good in Paris actually is. Buy tickets individually and stop resenting it.