This will cost less than 1000 Pts and is enough to keep you feeling warm and happy for the rest of the day. That traditional English speciality, tapas , is also available in Spain but is definitely not a cheap option. Tap water in Madrid is generally of a very high standard and will be served in bars and restaurants - there is no need to order mineral water, ask for una jarra de agua del grifo . However, in Barcelona, the quality of tap water is inferior and its taste quite poor. People don't usually drink it and restaurants won't serve tap water unless you specifically ask for it.
Mineral water is very cheap.
Avoid taking clothes that need to be dry-cleaned as it is quite expensive and normally takes two to three days. Self-service washes will cost about three to four pounds. Service washes normally take twenty-four hours and cost a little bit more. Take your own washing powder and perhaps a laundry line with clips. Or local emergency numbers as indicated in phone boxes.