I recently completed a game (Immortal/Japanese/Island Plates) w/ a domination victory, and toward the end of the game I had 25+ cities. Amenities were a challenge: most of my cities were "Displeased." So I elected to use the Retainers card (military), available under the Civil Service civic. This is supposed to give +1 amenity for cities w/ a garrisioned unit. But it did not work at all. I verified this several times w/ several different cities. Anyone else have experience w/ this issue?