I had a long-standing issue with the breadcrumbs in Confluence showing up twice -- once for the space name and once for the home page. So, for a space called "Documentation", you'd get:
Dev Center > Documentation > Home
In this case, the "Documentation" and "Home" links would go to the exact same place.
After learning a little more jQuery, I was able to remove the "Home" breadcrumb by adding the following line in my Custom HTML "HEAD" section in the Admin panel:
AJS.$('#breadcrumbs li').eq(2).remove();
This basically removes the 3rd list item (li) in the unordered list (ul) called breadcrumbs.
Hope this helps someone else.
matt