The real fun, perhaps, is slithering it into the story. And when you have these brilliant ideas, like having the queen make the hero and heroine wait in a garden, so that that mistress of medicinal herb lore can talk, to fill the time, about how all the flowers here, too, are useful because they use them to send messages. . . .
Well, it was all very well to have her explain that one unpopular one is to propose actual marriage rather than a courtly affair, and to get him to propose. (I knew the wedding was coming down the pike, but this is the perfect point for a proposal.) But given that she explained the trysting usage to her apprentice as well, she's going to have use them sometime. For a strikingly difference purpose -- though, for once, the muse had already given me something, and so this is going to hook things together. (Occasionally muses throw you fish like that, for being a good performing seal.)
Though then the heroine started to comment about two elderly women who would, for very different reasons, disapprove of the proposal flower, and I realized they had to be smuggled in earlier, too. sigh Especially since throwing them in means I can add some history and background to the story. Almost always helpful, that.