I have 3 custom post types, with 2 custom headers each (1 archive, 1 singular) = 6
Then a number of hooks:
social sharing links (used in various places throughout on 2 custom post types)
custom hook on top of archive pages for additional layout options
related links (for all 3 custom post types) at end of singular pages
a hook in the top menu
a hook at end of each page (between content and footer) used on most pages (not all)
a few custom hooks depending on user status/page options.
Being able to search the element content would be great.