@fuenfuhrteefix I kept it vague on purpose to get a sense of how other folks would answer the question :)

I have a 18-55mm kit lens, but admittedly, I don't really use it now that I've attuned to the 35mm. The larger max aperture setting on the 35mm makes it feel much more flexible.

Right now, I'm primarily taking pictures of flowers and dogs (either my own or dogs at the farmer's market I volunteer at). But part of my goal with a new lens is to push myself to take different types of photos. That's one thing I enjoy about prime lens — they make me really focus (heh) on a specific setting.

@Colman I'm thinking about the Nikon AF-S Nikkor 85mm f/1.8G. MPB seems to have a good stock of them for less than $300.

I haven't investigated extension tubes at all, so I'll need to look into that route!