Quite like this one. Could never be bothered going through the hassle of opening another bank account just to get an electron card but a prepaid card seems a lot easier and atttactive. Though having looked at several card web sites, the options and charges are far more complicated and deceptive than even buying airline tickets.
Just with five minutes surfing, it looks like the only totally 'free' card which is denominated in pounds sterling requires you to put in £1000 a month. Others either hit you with a monthly charge, or take a cut on each transaction. Some which appear to be free are only denominated in euros or US Dollars so you pay a exchange fee commission if you use them in the UK. And they have your money of course and there is a good chance you might forget that. So not as straightforward as you might think.