Back to top
A trivial client-side script that adds a "back to top" link above every heading (h2, h3) in the body of a page.
In general, "back to top" links are pretty redundant UI clutter for folk that can use either a keyboard, mouse, or scroll wheel. They also get in the way of screen-readers for folk that can't use those devices.
However, if the client insists, it's better for them to be added automatically like this than to have them inserting them by hand.