Here's one that doesn't need much introduction - Amazon.co.uk

Remember those old fashioned sweet shops.. Well remember no more, but buy online from A Quarter Of...

Boutique Styles, Fashion Favourites, and High-End Items can be found at "Bored of the High Street". 

Chic Celebrity Fashion Trends, including Evening and Casual Wear all at affordable prices at Goddiva.

Get a spare of glasses for outdoor sports, sailing, extreme trekking, etc for under £15 at Glasses4Eyes.

The Tie Warehouse covers everything from Plain to Patterned and Clip-Ons To Novelty Ties.  Free UK Delivery.

Urbanity is an Urban Boutique Shop, and has up to50% off in their Summer Sale.

Looking for more Urban and Hip Hop Streetwear?  Try Yukka.

Shop online in privacy for your Underwear (Normal or Novelty!) and Swimwear at Dead Good Undies.

Hassle free shoe shopping with Totally Shoes means no more queues.  Free UK Delivery too!

Jones the Bootmaker provides excellent quality shoes.  They are not cheap, but they are good quality.