Wiki
Plain-language guides to points, cards, eSIM and travel
Short, sourced explainers you can read in a few minutes. Each one names where its facts come from and when we last checked them.
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- Frequent flyers and loyaltyAirline miles, hotel points and status: how the programs work and how to keep your points from expiring.1 guide
- Cards and vouchersCard rewards, gift cards and coupons: what they are worth, how they expire and what to check first.1 guide
- eSIM and mobile dataA phone plan that works abroad: what an eSIM is, what your phone needs and how to set one up.1 guide
- Travel and paying abroadCurrency, fees, backups and checklists for paying your way through a trip.1 guide
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- Cards and vouchersCard rewards, gift cards and vouchers, explainedCash back, points and miles, plus gift cards and coupons. What each one is, how it can expire, and what to check before you count on it.3 min readChecked October 5, 2026
- eSIM and mobile dataeSIM, explained: what it is and how to use one abroadWhat an eSIM is, what your phone needs, and a safe order of steps for setting up a travel plan while keeping your home number.4 min readChecked October 5, 2026
- Frequent flyers and loyaltyFrequent flyer programs, explainedHow miles, status and airline alliances work, and the few habits that keep your points from going to waste.3 min readChecked October 5, 2026
- Travel and paying abroadPaying abroad: currency, fees and a backup planHow to choose the currency at the till, what to look for in your card's costs, and how to carry a backup so one declined card does not end your trip.3 min readChecked October 5, 2026
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