SharePoint infamous direct URL’s

Force Page Edit Mode in SharePoint: http://host/sitecollection/page.aspx?ToolPaneView=2&pagemode=edit
Sign in as Different User:  http://host/sitecollection/_layouts/closeConnection.aspx?loginasanotheruser=true
Important: This option uses an unsupported browser feature which is unreliable and causes other issues. Currently this option does not work in IE 10 and Safari.
Web Part Maintenance Page:  HTTP://host/sitecollection/page.aspx ?contents=1
Show Page in Dialog View: HTTP://host/sitecollection/page.aspx?isdlg=1
Site Features: _layouts/ManageFeatures.aspx
SiteCollection Features: _layouts/ManageFeatures.aspx?Scope=Site
(the query string parameter is case sensitive. “Scope=site” throws an error)
Get the version of the SharePoint server (Patch level): /_vti_pvt/Service.cnf
Application page for registering SharePoint apps: /_layouts/15/appregnew.aspx
Save Site as a template:  /_layouts/savetmpl.aspx
Sign in as a different user: /_layouts/closeConnection.aspx?loginasanotheruser=true
Enable SharePoint designer:  /_layouts/SharePointDesignerSettings.aspx
Welcome Page (Default page settings): /_layouts/AreaWelcomePage.aspx
Change Site Master Page:  /_layouts/ChangeSiteMasterPage.aspx
Page Layouts and Site Templates: /_Layouts/AreaTemplateSettings.aspx
Master Pages library: /_catalogs/masterpage/Forms/AllItems.aspx
User Information List: _catalogs/users/simple.aspx
Quick Deploy List: Quick%20Deploy%20Items/AllItems.aspx
Open Page in Edit Mode:  ?ToolPaneView=2
Taxonomy Hidden List (MMS): Lists/TaxonomyHiddenList/AllItems.aspx
User Information List:  _catalogs/users/simple.aspx
Force displaying the user profile in the site collection:  /_layouts/userdisp.aspx?id={UserID}&Force=True
Note: Some URL’s I have not tested though.