I highly recommend the Microfiber Madness IncrediSponge. Great bit of kit. 
  
  
 
  
The point would be this  
  
  
  
 
  
Regardless of if you're doing a full detail or a maintenance wash, ideally you want a shampoo that cleans and lubricates well. Some do both a lot better than others do either. 
  
  
 
  
Have a read through this and take your pick. 
 
  
Thanks for the heads up with the sponge, I'll give it a whirl  
  
Great write up and you provide a compelling argument Still not convinced its necessary mind! 
  
Oh 'ull