I have done something to my environment - In the experience editor, "Editing" and "Designing" check boxes are greyed out, so I cant actually edit anything. Is ExperienceEditor.Enabled a setting somewhere?
This is Sitecore 8.2 Update 3
UPDATE
Here is the sites section of my showconfig:
<sites>
<site name="shell" virtualFolder="/sitecore/shell" physicalFolder="/sitecore/shell" rootPath="/sitecore/content" startItem="/home" language="en" database="core" domain="sitecore" loginPage="/sitecore/login" content="master" contentStartItem="/Home" enableWorkflow="true" enableTracking="false" analyticsDefinitions="content" xmlControlPage="/sitecore/shell/default.aspx" browserTitle="Sitecore" htmlCacheSize="10MB" registryCacheSize="15MB" viewStateCacheSize="1MB" xslCacheSize="25MB" disableBrowserCaching="true" contentLanguage="en" patch:source="Delphic.LanguageFallback.config" enableFieldLanguageFallback="false" itemwebapi.mode="StandardSecurity" itemwebapi.access="ReadWrite" itemwebapi.allowanonymousaccess="false" enableItemLanguageFallback="true"/>
<site name="login" virtualFolder="/sitecore/login" physicalFolder="/sitecore/login" enableTracking="false" database="core" domain="sitecore" disableXmlControls="true" language="en" patch:source="Sitecore.DefaultLanguage.config"/>
<site name="admin" virtualFolder="/sitecore/admin" physicalFolder="/sitecore/admin" enableTracking="false" enableWorkflow="true" domain="sitecore" loginPage="/sitecore/admin/login.aspx"/>
<site name="service" enableTracking="true" virtualFolder="/sitecore/service" physicalFolder="/sitecore/service"/>
<site name="modules_shell" virtualFolder="/sitecore modules/shell" physicalFolder="/sitecore modules/shell" rootPath="/sitecore/content" startItem="/home" language="en" database="core" domain="sitecore" content="master" enableTracking="false" enableWorkflow="true"/>
<site name="modules_website" virtualFolder="/sitecore modules/web" physicalFolder="/sitecore modules/web" rootPath="/sitecore/content" startItem="/home" language="en" database="web" domain="extranet" allowDebug="true" cacheHtml="true"/>
<site name="MySiteDotCom" hostName="local.mysite.com" errorpageid="26B66A89-8A83-4CD5-80C9-0200F0C7754F" sitesettingsid="FD867206-CB41-4A4E-8C61-C965BD74F5E4" virtualFolder="/" physicalFolder="/" rootPath="/sitecore/content" startItem="/MySite DotCom/home" domain="default" allowDebug="true" cacheHtml="true" htmlCacheSize="50MB" registryCacheSize="0" viewStateCacheSize="0" xslCacheSize="25MB" filteredItemsCacheSize="10MB" enablePreview="true" enableWebEdit="true" enableDebugger="true" disableClientData="false" cacheRenderingParameters="true" renderingParametersCacheSize="10MB" patch:source="Delphic.LanguageFallback.config" database="master" filterItems="true" enableWorkflow="true" enableItemLanguageFallback="true"/>
<site name="MySiteDotNet" hostName="local.mysite.net" errorpageid="9CAA474A-F4F0-4462-A3F3-038B6B3F671D" sitesettingsid="CEC6BC86-5A07-4020-84B0-0A7F2D936664" virtualFolder="/" physicalFolder="/" rootPath="/sitecore/content" startItem="/MySite Prepaid DotNet/home" domain="default" allowDebug="true" cacheHtml="true" htmlCacheSize="50MB" registryCacheSize="0" viewStateCacheSize="0" xslCacheSize="25MB" filteredItemsCacheSize="10MB" enablePreview="true" enableWebEdit="true" enableDebugger="true" disableClientData="false" cacheRenderingParameters="true" renderingParametersCacheSize="10MB" patch:source="Delphic.LanguageFallback.config" database="master" filterItems="true" enableWorkflow="true" enableItemLanguageFallback="true"/>
<!--
ITEM WEB API SETTINGS FOR A SITE
Supported attributes (first is default):
itemwebapi.mode: [Off|StandardSecurity|AdvancedSecurity]
If set to Off, Item Web API is turned off.
If set to StandardSecurity, Item Web API is turned on. Default Sitecore security model is used.
If set to AdvancedSecurity, Item Web API is turned on. Default Sitecore security model is extended with a requirement to explicitely set the 'remote:fieldread' access right for content fields.
itemwebapi.access: [ReadOnly|ReadWrite]
If set to ReadOnly, then only READ operation is allowed.
If set to ReadWrite, then CREATE, READ, UPDATE, and DELETE operations are allowed.
itemwebapi.allowanonymousaccess: [false|true].
Defines if access is allowed for non-authenticated user.
-->
<site name="website" enableTracking="true" virtualFolder="/" physicalFolder="/" rootPath="/sitecore/content" startItem="/home" database="web" domain="extranet" allowDebug="true" cacheHtml="true" htmlCacheSize="50MB" registryCacheSize="0" viewStateCacheSize="0" xslCacheSize="25MB" filteredItemsCacheSize="10MB" enablePreview="true" enableWebEdit="true" enableDebugger="true" disableClientData="false" cacheRenderingParameters="true" renderingParametersCacheSize="10MB" language="en" patch:source="Sitecore.LanguageFallback.config" itemwebapi.mode="Off" itemwebapi.access="ReadOnly" itemwebapi.allowanonymousaccess="false" enableItemLanguageFallback="false" enableFieldLanguageFallback="false"/>
<site name="scheduler" enableTracking="false" domain="sitecore"/>
<site name="system" enableTracking="false" domain="sitecore"/>
<site name="publisher" domain="sitecore" enableTracking="false" enableWorkflow="true"/>
</sites>
<sitecore><sites/></sitecore>
configuration? – Sergeant Sitecore Oct 12 '17 at 15:25