Paul writes in with another piece of advice about travelling in Spain.
Another word of warning to novice travellers in Spain; be careful at the big hypermarkets as thieves operate in the car parks targeting small hire cars (easily identified as they silly sods always put the hire company name on the vehicle registration plates).
We got caught this way on our first trip and my girlfriend lost most of her clothes and a new digital camera, clothes weren't too much of a problem as we were on a naturist holiday but the rigmarole involved in getting a police report is mind blowing. I also had my passport stolen and getting that replaced was even worse !!. Silly to hide our stuff in the car I guess but a lesson well learned and often mentioned to fellow travellers as a word of warning.
Couldn't rob our car or cheat us out of fuel last trip cos we rode all the way down on my motorcycle.