What do you think is the best way to service/clean a cassette deck?

Do you have a favorite technique for cleaning and demagnetizing your tape deck? Q-tips and alcohol? De-mag cassettes? etc? I'm looking for some different methods and good advice.

 

You might want to give this a read, it's fairly exhaustive

http://www.repairfaq.org/sam/audiofaq.htm#audtape

Cheers