Guides & explainers
The reasoning behind the tools. How percentages actually work, what a loan really costs, why BMI misleads, and how to pick a password that holds up. Written to answer the question, then get out of the way.
Money What Is Compound Interest, Explained Simply?
Compound interest is interest earned on interest, and over long periods it dominates everything else. A plain explanation with numbers, and why it cuts both ways.
Work What Is Time and a Half?
Time and a half means being paid 1.5 times your normal hourly rate, usually for overtime, weekends or bank holidays.
Security What Is Two-Factor Authentication and Should I Use It?
Two-factor authentication adds a second check, usually a code from your phone, so a stolen password alone is not enough. It blocks most account takeovers.
Home What Size Rug Do I Need?
The most common rug mistake is buying one too small. For a living room, all front legs of the seating go on the rug; for a bedroom, the rug extends 60 cm beyond the.
Work What Is UTC and Why Does It Matter?
Coordinated Universal Time is the reference every time zone is defined against. It never changes for daylight saving, which is why it appears in flight times, server.
Work When Is the Best Time to Send an Email?
Mid-morning on a Tuesday to Thursday gets the best open rates in most studies, but the honest answer depends on the recipient's time zone, inbox and whether you need.
Health Why Do I Keep Waking Up at 3am?
Waking in the small hours is common and usually explained by sleep architecture, alcohol, stress hormones or a full bladder, not anything sinister. What causes it and what helps.
Explainers Why Is My Phone Storage Full?
Photos and videos are usually the answer, followed by messaging app caches and unused apps. How to find what is taking the space and free most of it without deleting.
Web www or No www? Pick One, Redirect the Rest
The choice barely matters. Serving both does. Here is why Search Console reporting your other domain as a redirect is the sign it is working, not a fault.
Web Design for the Smallest Size It Will Ever Be Seen At
Favicons, app icons, thumbnails and logos in a footer all fail the same way: they were designed large and shrunk. The fix is to reverse the process.
Health When to Stop Drinking Coffee, According to Its Half-Life
Half of a 4pm coffee is still in your system at 9pm. A controlled trial found caffeine six hours before bed cut sleep by over an hour, and nobody noticed.
Web Your Favicon Is 16 Pixels Wide. Design For That.
Most favicons are a shrunken logo, which turns to grey mush in a tab. The fix is one bold shape, two colours, and a filled background.
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