/crx/explorer/index.jsp - CRX explorer
/crx/de/index.jsp – CRXDE Lite url
/libs/cq/search/content/querydebug.html – Query debug tool
/libs/granite/security/content/admin.html – New user manager standalone ui [5.6 only?]
/libs/cq/contentsync/content/console.html – Content sync console
/system/console/bundles – Felix web admin console
/system/console/jmx/com.adobe.granite.workflow%3Atype%3DMaintenance - Felix web admin console JMX / Workflow maintenance tasks
/system/console/jmx/com.adobe.granite%3Atype%3DRepository - Felix web admin console JMX / Repository maintenance tasks
/etc/reports/diskusage.html?path=/content/dam – To know the size of the repository
wcmmode=DISABLED - This handy publisher parameter turns off CQ authoring features so you can preview a page cleanly
/system/console/depfinder – This new 5.6 tool will help you figure out what package exports a class and also prints a Maven Dependency for the class.
If you have more handy URL’s and or parameters that you think others should know about please comment on this blog entry and I will add them to the list.