Kall Kwik are a great printing company and depending on the volume of your request can pretty much help out on the day. I had a picture which I needed blowing up and laminated — I rang at 10am, sent the jpeg over and by 12pm, the order was ready for pick up. It cost £10 which I was very happy with as the end product was of a fantastic quality. They also provide a general printing service, photocopying and binding. The guys in the London Bridge branch are really friendly and always helpful. They are brilliant with providing ideas on how best to do something — such as the layout and design of your business cards. Definitely one to think of when your office equipment decides to break down!