I've been noticing all the credit card deals around the city and started pondering on a system here.For example,Banco Leon had 8% on gas last month and 4% this month.Banco popular has 30% on funny factory and the mobile app shows discounts depending on your location.So I was thinking that if you get cards from the major banks,use it and pay the next day without carrying a balance,you just might break even(cost of living in comparison with the states) or cheaper.Any inputs....