Editors add Sister project boxes, e.g. "There is other content available on Wiktionary" and Sister project links boxes, e.g. "Find more about San Francisco at Wikipedia's sister projects [...list...]", and Sister-inline links, e.g. "Media related to Cat at Wikimedia Commons"
Now on certain pages we are duplicating this content which causes bloat to the html which should be as thin as possible.
I think the side bar is great - is there some way we can consolidate these two things and remove the need for in-article boxes that take up much needed real estate in mobile?