What should NOT be under source control?

It would be nice to have a more or less complete list over what files and/or directories that shouldn't (in most cases) be under source control. What do you think should be excluded?

Suggestion so far:

In general

• Config files with sensitive information (passwords, private keys etc.)
• Thumbs.db, .DS_Store and desktop.ini
• Editor backups: *~ (emacs)
• Generated files (for instance DoxyGen output)

C#

• bin\*
• obj\*
• *.exe

Visual Studio

• *.suo
• *.ncb
• *.user
• *.aps
• *.cachefile
• *.backup
• _UpgradeReport_Files

Java

• *.class

Eclipse

I don't know, and this is what I'm looking for right now :-)

Python

• *.pyc

Temporary files - .*.sw? - *~