Note to admins: If you plan to clean out the entries remember to check if...
The entry on Commons actually exists
The entry has proper copyright information on the Commons page
All links point to the new file name at Commons
The file was properly uploaded (preserving GFDL required history of revisions and source information)
The file on Commons has the same resolution (if not, upload the higher-resolution original to Commons as a new version of this image)
The file was properly added to an article or category in Commons
These images are now available at Commons, but have a filename there which is different from the filename here. For this reason, all links here must be updated to the new Commons filename before deleting the local copy.