The Post Office says it is the most popular place at which to buy foreign currency for the holiday abroad. I cannot think why. I found the following rates at the beginning of September. (Remember, you want to get as many Euro per UK£ as possible when you buy them, which is the lower of the two rates quoted on the boards; that may be what eludes that strange majority that flocks to the Post Office.)
At the Post Office ---- 1.1527 Euro/UK£
At the Thomas Cook ---- 1.223 Euro/UK£
Correct rate ---- 1.26153 Euro/UK£
Why, even in the narrow alleyways of central Venice you will get
1.2195 Euro/UK£ !