Well Design not necessarily means order.
Randomness is an equal contender of being a good Design.
Important aspect of good design is a pattern. A pattern that we have seen somewhere and if we see it again we are sure to relate and recognize and most probably remember.
Take for example the simple dressing that I did for my food. I cut these fruits and put it on plate in some pattern (circular here). And later if you happen to see a webpage or a print on sari which has similar sort of structure/layout your brain will immediately bring forth this pattern and you'll make a relation.
As a Designer you have to keep practicing these traits and everyday routine and that's how it'll get imbibed in your brain, your subconscious mind at least.