Enable your site to have a different domains for HTTP and HTTPS.
Duplicate any existing widget using the Widget Alias widget and shortcode.
301 redirects and aliases. Change a permalink or then parent and the old address will automatically be forwarded. Plus add custom redirects.
Changes the URLs pointing to pages and posts which have a "redirect" custom field, using that entry as the URL instead.
Redirects you to the proper URL of the website. In case of stumbling upon a working alias.
Make TinyURL-like URLs (you.com/33ks8s) that redirect to pages inside / outside your blog. Can also create human-readable aliases (you.com/facebook).