Got this email from a staff member the other day after asking him to clean the tape drive in a backup server at one of our remote sites:

Cleaning tape has been run through the drive.

Given the number of times we have cleaned that drive in the last couple of weeks it would have to be the cleanest tape drive in the known universe.
Short getting to it with some steel wool and a bottle of Ezy Off Bam, I don't think its insides could be any cleaner.

 I can give the outside a nice spruce up with some Mr Sheen if you think it will help.