Rain or shine, summer or fall, amongst the many accessories you can wear to dress up or down this season, the one key element you should never forget is a great pair of sunglasses.

Cool shades are a key accessory this fall for both men and women, as the right pair can make quite a statement.

Big frames are back in a big-way this year, and work with most face shapes. As opposed to last year, a more rounded shape is the most current trend (think Jackie O) and the look is perfect for days when you don't want to be recognized.

You can have fun with colour, as there are a variety of colours available to purchase for the latest looks this season. Black or brown frames are the most common as they are a classic choice, however mixing it up with a pair of white Dior's or red Gucci frames is sure to break a few necks along the way.

Whether you are new to the city, or perhaps you have been here a few years, London's best kept secret in eyewear is Cross Eyed Optical located downtown right on Richmond Row. They have all frames from Juicy, Dior, Armani, Gucci, Oakley and many more, and they customize all frames to your face for the perfect fit. The owner of Cross Eyed Optical, Charles, is kind, current and very helpful when choosing the perfect pair of either sunglasses or reading glasses for your face shape. The location is convenient and perfect for trying on many different pairs until you find your desired look.

Sunglasses (but more specifically, oversized sunglasses) have been making waves in the entertainment industry since its inception, and really do glam up whatever you are wearing; day or night.

As long as you are careful and do not make a habit of sitting on your new designer frames, you should upgrade to a new pair of shades that are sure to take your fall look through to the spring in style.