Hide Empty Paragraphs
I usually use carene waterman's Strip Empties bookmarklet to clear out extra whitespace (amusingly, they credit me on that page for having a similar idea in a long defunct userscript), but I've encountered a few works recently that it doesn't work on, so I re-implemented it in jQuery for my own use.
Comments/bugs to firstname.lastname@example.org.
12/06/2016: Created this page.
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Bookmarklet created with MrColes's Bookmarklet Generator. Assumes that jQuery is already present on the page.