1. 1 to 2 dual-currency credit cards. Remember to sign and set a password to prevent loss or theft. The credit amount of each card does not need to be too large. Ordinary entry-level ones are basically fine, about 3,000 to 5,000 each. For consumption only, interest-free.

2. A little cash, which is needed when it is inconvenient to swipe cards while traveling and eating;

3. 1. 2 debit/debit cards with the UnionPay logo (Bank of China, ICBC, China Construction Bank, China Merchants and other larger banks). You can withdraw local currency from ATM machines in the UK. Do not use credit cards to withdraw cash, as the fees and interest will be high.

4. The handling fees of each bank are different. You can compare.

In addition, cards and cash are placed in several places. Especially for credit cards, if you lose them, remember to report the loss immediately. Shenzhen Development Bank credit card provides "card loss protection 72 hours before reporting loss." (No need to pay if stolen)

5. Remember to bring a 3G mobile phone and activate international roaming. You can keep in touch with your family, and receiving text messages is generally free. For other fees, you have to call your mobile phone operator to ask.