I decided to take traveller's cheques, and change them in Arillas, for what I expected would be a better exchange rate. It was so; 1.20 to the pond in the UK, compared to 1.24 in Arillas. HOWEVER, I had to pay 2% commission in the UK, and yet another 2% commission in Arillas, so I was no better off. Last year, in a larger Greek resort, with perhaps a greater range of banking facilities, I got my cash commission free. Arillas proved worth the extra few euros though!