Pattern on Pattern: Its a love~hate relationship

Unless you are a runway designer, pattern on pattern can be hideous if you don't do it right. One of the most basic rules is to find two patterns that have a primary or pastel color that compliments the other. DON'T try to pair elaborate patterns together; the result will be more than trash~can worthy. Different textures, such as a chambray top on patterned corduroys, can only be done by the most elite designers. I personally don't agree with denim on denim, along with other textures (ex. corduroys)on the same texture. Floral on floral can be a deadly mixture if not done properly!!! 

Some examples: 
http://c711361.r61.cf2.rackcdn.com/53e1baf0834ab9f5667da847a23fdfd107ec8079_600.jpg