Christopher Kane's patterns
Sublimely psychedelic (right).
See the long belted version by Paul Smith (far right).
As seen at Prada.
Loose white shirts
Done well it's chic yet unassuming.
Juvenile - go for retro or graphic designs instead.
Keep it trim and neat.
So two years ago.
Rachel Zoe's style
The words mutton and lamb spring to mind.