Using EasyClean is easy - just:
Set up a cleaning recipe, either by running the wizard, or manually, then
Drag-and-drop whatever folders you want to clean onto the EasyClean window (shown below). Note that you can only specify folders, not individual files.
EasyClean will populate the right pane of the window with a list of files to be deleted. Check the list, deselect any you want to keep, than click the trash button in the lower right of the EasyClean window.