Take back that space that those annoying ads and upgrade prompts are currently holding prisoner

tampermonkey-outlook-space-liberation.js

// ==UserScript==
// @name         Outlook Space Liberation
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Gains that space back by annoying ads and upgrade prompts.
// @author       fischgeek
// @match        https://outlook.live.com/mail/*
// @grant        none
// @require      http://code.jquery.com/jquery-1.12.4.min.js
// ==/UserScript==

var $ = window.jQuery
$(document).ready(function() {
    setInterval(function(){
        $('[data-icon-name="OutlookLogo"]').parent().parent().parent().hide()
        $('[role="menu"]').prev().hide()
        $('span:contains("Upgrade to Office 365")').parent().parent().parent().hide()
    }, 500)
})