I cant believe more people dont use this method instead of keep taking TC's and cash. I changed a little cash before I left last month (exchange date was end July), the best rate I could get was $1.77. I got my card statement, rate was anything from 1.88-1.91. About £100 better off than if I had taken £1500 in Cash or TC's.
Its a massive difference if the rate goes up whilst you are there. Not so good if it goes down.