So here's something I was thinking of a bit recently: Fun little things that you had no initial plan to set out and do in your story, but things just so happened to line in that way anyways. Like some fun little world building detail or connecting fact about your characters or something like that.
Like for example, I recently noticed that each of the six main characters in DRAGOONS each had either a first or last name that related to the sky or weather in some way.
Flare (Solar Flare.)
Fubuki Fuma (Snowstorm and Wind Demon in Japanese.)
Bryce Brontosaurus (Thunder Lizard)
Auster (Roman name for the South Wind)
Zephyr (The West Wind)
Selena Stormbringer (Selena was a moon goddess in mythology and the last name should be obvious)
That was completely unintentional on my end, but I found it a fun little connecting detail between them anyways.
So just fun little coincidences in your stories like what I bowed above if you get that.
Have fun sharing your coincidences with each other! 