it is very easy to spot any stain on white color solid paint...
if really lazy to wash maybe 2-4 weeks once, go for metallic paint...

anyway, u can send your car for detailing every 3-6 months...
the staffs will apply a seal layer which will isolate the water and paint, wont harm directly to car paint directly and it will look like bubble water...
hence the paint surface will as smooth as silk...

example the picture below is my bloody effort for detailing...



if u want to cheap detailing, the SS2 there have one shop doing this, around Rm300-400 for standard package if no remember wrong...

This post has been edited by gkl83: Dec 11 2012, 08:05 AM

actually claying is better than polish...

polish remove layer by layer along with contaminants bcos of chemical cleaning, worst the paint by look "imbalance" after polish...
claying no chemical cleaning involved, it simply remove the contaminants only...

as usual, claying + waxing will do more than enough for detailing...
polish required unless claying no able to remove the hard stain or contaminants...
rubbing compound required unless polish no able to remove the tough stain or contaminants, it 100% will harm the car paint...

here some information about claying
http://www.bimmerboost.com/showthread.php?...!-MUST-READ

try to use clay bar for claying, u can get it from carrefour branded Permaglass...
otherwise polish is the only solution if claying no able to remove the stains...

can use repeatedly till become dark / dirty...
but of cos too use it too oftenly as the trapped contamination may scratch ur car paint...
http://www.bimmerboost.com/showthread.php?...!-MUST-READ