When booking my hotel room for Denmark with expedia I received this Travel Sim Card free of charge. If you are a frequent traveler and live in the UK then this is something worth investing in.
The benefits of this Sim Card:
You can receive calls free of charge in most Countries of the world. The added bonus is that unlike most other travel Sim card you have a regular UK phone number. So this means you can redirect your normal phone to this UK phone number and will not have to pay (if you have enough inclusive minutes).
Go check them out… http://sim4travel.com
Disclaimer: I do not get any money or free airtime from sim4travel – I recommend them because I believe they are good – however if they want to add some credit to my account I would not say no 😉