...well, take those mugs you only use when you have company and put them on these sliding hooks.  I bought 2 and it completely cleaned my cabinet.  
My only complaint is that to fit mugs you can only use every other hook. 
Now our favorite mugs are on the cabinet shelf and the others hang above, out of the way, but accessible when company arrives! 

Pros: Great way to store extra mugs!  Slides easily!  Great organizer!
Cons: None