I have had a terrific addition to my mu-plugins folder the day I found out about 'mr. Saders plugins', they are extremely useful, userfriendly and characterized by their ability to fill WordPress functionality-niches that really SHOULD be standard. Although I'm happy they are not since I now have the upperhand in WP land!!! (evil scientist laugh!)
But seriously, mr. Sader: thanks a lot!
Nick vd Veerdonk
Ps. A nice in-style addition to your mu-plugins arsenal: network css plugin? Nowhere to be found in .org!