Blog Picnic

Practical guides to international cards, digital dollars, travel and finance.

Best Card to Use in China in 2026

See which card to use in China in 2026, how to register it on Alipay and WeChat Pay, when the 3% fee applies, and which backups to bring for safe payments during your trip.

Aug 11, 2026

Travel14 min read

Does Shopping China Accept Pix? The Hidden Fee in the Exchange Rate

Shopping China accepts Pix, but the fee isn't shown as a separate line: it's in the store's exchange rate. See the real cost and what to ask before paying.

Aug 2, 2026

Travel10 min read

Dollar Exchange Rate at Shopping China (2026 Guide)

Why is Shopping China's dollar different from the market rate? See the three exchange rates involved in a single purchase and how much each one costs in a US$500 purchase.

Aug 1, 2026

International accounts11 min read

Best Card to Use in Argentina in 2026: Tourist Exchange Rate and Real Cost

What is the best card to use in Argentina in 2026? Understand the tourist exchange rate (MEP dollar), the IOF, and why cards now usually beat cash.

Jun 29, 2026

Travel10 min read

How to Pay at Shopping China (2026 Guide)

Real, guarani or dollar at Shopping China? See which currency to pay with, whether you can pay in installments, and the real math of each method to spend the least on fees.

Jun 5, 2026

Travel11 min read

Best Ways to Spend in Paraguay (2026 Guide)

A US$ 1,000 purchase can cost up to US$ 78 more with the wrong card — or US$ 3 with the right one. Which currency to pay with in Paraguay, the US$ 500 allowance, and the cheapest method.

Jun 1, 2026

International accounts12 min read

Shopping on Amazon US: How to Pay from Brazil (2026)

Amazon US delivers to Brazil. The import tax is the same with any card — but the payment cost isn't: up to $13 for every $200 with the wrong card.

May 29, 2026

Travel11 min read

How to Pay Less IOF on Booking in 2026 (Complete Guide)

IOF on Booking is 3.5% in 2026. See how to reduce the impact: pay now or at the hotel, which currency to pay in, and which card to choose. With a real example from London.

May 23, 2026

International accounts11 min read

What Is the Best Card to Use in the USA in 2026: Real Comparison

On a US$2,000 trip to the USA, fees range from R$0 to over R$660 depending on the card. Compare IOF, spread, and Visa fee to see which one is worth it.

May 21, 2026

International accounts11 min read

Disadvantages of the Picnic Card: What to Know Before You Travel [2026]

See the real limitations of the Picnic card, who is affected, and how to prepare: dollar balance, credit, ATM, holds, support, and benefits.

May 12, 2026

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