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.
98 guides across 8 topics
Browse by topic
- Rewards basicsHow rewards, interest and statements actually work.6 guides
- Credit cardsSign-up bonuses, annual fees, issuer rules and the fine print.39 guides
- Points & milesAirline, hotel and bank points: how they are earned, valued and kept.8 guides
- Credit & your rightsScores, reports, freezes, disputes and the laws behind them.12 guides
- Banking & paymentsAccounts, IBANs, cross-border transfers and virtual cards.10 guides
- eSIM & connectivityStaying online abroad without surprise bills.7 guides
- TravelPaying, insuring and moving across borders.10 guides
- SecurityDisputes, scams and keeping your accounts safe.6 guides
Guides labeled “groceries”
- Credit cardsAmerican Express Gold Card in 2026: 4x on food, a 325-dollar fee, and credits you must actually useWhat the Amex Gold lists in October 2026: 4x points at restaurants and US supermarkets, 5x on prepaid hotels, a 325-dollar fee and four credits worth 424 dollars if you use every one. A worked example, the rules that can cost you the bonus, and who should skip it.5 min readIntermediate
- Credit cardsAmerican Express Blue Cash Preferred in 2026: 6 percent on groceries, and a fee that starts in year twoThe Blue Cash Preferred earns 6 percent at US supermarkets and on select streaming, 3 percent on gas and transit, with a free first year and 95 dollars after. A worked comparison with a flat 2 percent card shows where it wins, what the 6,000-dollar cap means, and which rules apply.4 min readBeginner
- Credit cardsCapital One Savor in 2026: 3 percent on food and fun, and the half-your-spending testWhat Capital One lists for the Savor in October 2026: 3 percent on dining, groceries, entertainment and streaming, 5 percent on Capital One Travel, 1 percent elsewhere, no foreign transaction fee. What counts as a category, and the test for when it beats a flat 2 percent card.4 min readBeginner
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