Wiki
Plain-language guides to points, cards, credit, banking, 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.
41 guides across 8 topics
Browse by topic
- Rewards basicsHow rewards, interest and statements actually work.5 guides
- Credit cardsSign-up bonuses, annual fees, issuer rules and the fine print.6 guides
- Points & milesAirline, hotel and bank points: how they are earned, valued and kept.4 guides
- Credit & your rightsScores, reports, freezes, disputes and the laws behind them.6 guides
- Banking & paymentsAccounts, IBANs, cross-border transfers and virtual cards.6 guides
- eSIM & connectivityStaying online abroad without surprise bills.4 guides
- TravelPaying, insuring and moving across borders.5 guides
- SecurityDisputes, scams and keeping your accounts safe.5 guides
Guides labelled “sim-swap”
- SecurityTwo-factor sign-in and passkeys: stronger accounts without more effortWhy a password alone is not enough, how text codes, authenticator apps, security keys and passkeys compare, and how to set them up so you never lock yourself out.3 min readBeginner
- eSIM & connectivityKeeping your home number reachable abroad without paying roamingWhy your home number still matters when you travel or move, the main ways to keep it alive cheaply, and the habits that stop it from lapsing or being hijacked.3 min readIntermediate
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