TRANSPORTThe city of Madrid counts with excellent means of transport. Its  underground network has modern trains and stations and links  to most destinations reaching even some of the main towns in the  surrounding areas of the city. Using the underground will be  the best way to get from one part of the city to another.
Here is a useful website for planning your transportation in Madrid: www.ctm-madrid.es, you will find  schedules for buses, trains and for the subway lines.
TIME The time in Madrid is the Central European Time (Summer Time  GMT+2)
CLIMATEThe average maximum temperature in Madrid in August is 90°F/32°C and the average minimum temperature is 61°F/16°C.
 Madrid will surprise you with its intense and enveloping blue sky. It has a dry climate with little rainfall. 
BUSINESS HOURS & SHOPSMost shops open between 09.30 and 13.30h in the morning and 17.00 to 20.00h in the afternoon on weekdays. During the summer months, many establishments will stay open much later in the evening. On Saturday opening hours are restricted to the morning shift and Sunday is literally the day of rest. However there are some department stores that remain open all day long until 22:00h.
CLOTHING Informal for all the occasions.
ELECTRICITYSpain's standard electricity supply is 220 Volts (V), 50 Hertz (Hz) AC. The plugs are round two pin, European standard.
CURRENCY AND BANKSThe national currency of Spain is the European euro (€). Exchange facilities are     available at Barajas  airport, most banks and also along central streets like Gran Vía.     Many visitors to Spain have commented on the advantage of bringing  debit cards rather than     credit cards, since the exchange rate is generally much better and  commissions lower. However, it would be prudent to check      this with your bank before travelling.
TIPPING AND CONSUMER TAXAt     almost all restaurants,  service is included, but it is common practice to leave a tip or around 5%, as it is with taxi drivers (depending on how you liked the  driving!).
Tipping is     not  obligatory anywhere, but much less in bars or cafeterias.  However, if you leave     a small tip it shows your appreciation of the service - a good rule  of thumb here is 10 to     20 cents per round of drinks. Never leave tips in pubs  or discotheques. A tip of 1 euro may be used in many other  occasions, such as with hotel porters.
There     are two different tax rates in Spain 8% and 18%. You will  pay 8%  tax on your hotel and     restaurant bills, as well as other  items considered "essential".  This tax is not     refundable. 
 Most     physical items purchased in shops will be taxed at the 18%  rate.
EMERGENCIESThe number 112 can be dialled to reach emergency services - 
medical, fire and police - from anywhere in Europe. This Pan-European 
emergency number 112 can be called from any telephone (landline, pay phone or mobile cellular phone). Calls are free. It can be used for any life-threatening situation, including:                                                                                         
- Serious medical problems (accident, unconscious person, severe injuries, chest pain, seizure) 
- Any type of fire (house, car) 
- Life-threatening situations (crimes) 
- SOS 112 website 
- Information on the 112 number from the European Commission website
 
TOURIST OFFICEOne of the main tourist information offices is the  Municipal Office of Tourist Information, which can be found at Plaza Mayor  (address: Plaza Mayor, 3). You can reach them on the telephone or  fax at: Tel: 91 366 54 77. Fax:  91 588 16 36. If you are planning to see as much as possible on your stay, then  this tourist information office should be the first stop on your itinerary.