1. Fly into Barcelona, BCN not Girona or Reus this will make your travels into the city center a lot cheaper and smoother.
2. Hold your money in a money belt while traveling and touring
3. Get your Barcelona Card ahead of time, this will allow you a discounted rate into museums
4. Prepare yourself for an afternoon of rest due to jet lag
5. Research the area of your hotel, make sure it is in a safe neighborhood and find fun things very close for the first day in

6. Make a list of things you want to do and group the activities by time a location so you can plan days ahead of time
a. Do not plan exact days because subject to weather change
b. Know when the museums are free
7. Talk to the concierge at your hotel and people who have been to the city to find the best places to eat and special little areas that they found to be the best
8. Schedule your day trips ahead of time
9. Bring Extra copies of your passport in case of emergency this will allow for a quicker turn around for a new pass port
10. Eat at Lunch Time. Barcelona is a city who lives off of the menu del dia which is discounted at Lunch time. Not only is it a Barcelona custom to eat larger lunches but it is a way for you to save money as well.

If you're following these tips and planning to visit Barcelona, take a look at barcelona rentals.