Yeah, men like the feel of silk or satin on a woman!
Very subtle? Just wear things that accentuate your feminine features and have your hair well styled. And make it seem like you dress that way for yourself and how you feel about yourself, not for him specifically. Make him wonder a bit.
Also, men like to be admired by women for their talents, personal traits and hard work. So, as with any married couple, there are endless things you could complain about, as well things you could admire. It's better to use more carrot and less stick. Make him feel that he's going to have a hard time getting the same level of sustained admiration from someone else as he gets from you.
So, as one of many things... at the Thanksgiving dinner with your adult daughters and their father around, bring up a story where you admired what your H did. Make him look good in front of his daughters. Another woman would have a hard time competing with that.
