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Use the COUPON GIANINI15 for 15% off by accessing the Insider Store: https://creators.insiderstore.com.br/... In this video I explain how to save 50 thousand reais by applying the 80-20 rule when using a credit card or debit card. Is it better to pay in cash or in installments? When to use a credit card? Is it worth paying in 10x or 12x installments? How to take advantage of the benefits of a credit card? How to convert credit card points into miles? How to travel using miles? #vidaplenagianini #minimalism #insiderstore Business contact: [email protected]