A wonderful slideshow on House and Garden website, explains why in design, rules are meant to be broken....here are a few highlights, you must visit the site to see the rest!
"Mixing styles is the mainstay of 21st-century interiors." -- Miles Redd. Here ornate 17th-century-style chandeliers are combined with countrified checks in Carlos de Beistegui's dining room.
"Clashing color combinations—yellow and purple, red and blue, coral and turquoise—always make a bold statement."--Hutton Wilkinson
It's okay to turn it inside...Le Corbusier and Carlos de Beistegui decorated this terrace to look like a living room!
Go ahead...play with scale, like decorators Michael Coorengel and Jean-Pierre Calvagrac have done in this room.
It's okay to fake it and add a little humor to a scene, like what was created here by Hubert Le Gall.