The CSS-only Carousels have gotten really good and easy to drop in lately.

Most tooltips can be handled by ancient `title` attributes and the ones that can't should generally be popovers anyway. Firefox support for anchor positioning is out now so HTML+CSS-only/mostly popovers are in a great state today.

There's always more UI controls people think they need. The web will be forever chasing that. But so much has happened in recent years it feels good to stop a moment and appreciate all the little things like details/summary working great for JS-free expanders and accordions.