1. Update the file <eclipse>\configuration\.settings\org.eclipse.ui.ide.prefs to edit or remove RECENT workspaces popup.
2. Useful short cut keys
<ctrl> + <space> = on the editor this does smart insert
<ctrl> + <shift> + r = open resource (can be any file java, xml etc)
<ctrl> + <shift> + t = open type (java/class file, even searches inside the library jars.
<ctrl> + w = close currently open editor window in workspace
<ctrl> + <shift> + w = close all open editor windows in workspace
