Explainers
Two kinds of post. Guides explain the money, health and tech ideas behind the tools, so a number means something instead of just appearing. The rest cover QR codes, short links and app-download links: what changed in the tooling, what the options actually cost, and what a given approach will not do.
26 September 2026guide6 min readHow to Test a Mouse: Buttons, Double-Clicks, Drag, and SpeedFour checks that take under a minute each and separate a failing button from a failing cable, a dying battery, or a setting. Run them in order, because each rules out what the next would confuse.26 September 2026guide6 min readDouble-Click Speed: What the Setting Controls, and What It Cannot FixThe Windows slider sets the maximum gap between two clicks, from 200 to 900 ms. A worn switch fires its phantom second click in under 10 ms, so no position on that slider can filter it out.7 September 2026qr5 min readQR Code for Google ReviewsGoogle generates a review QR code free inside Business Profile. When that is the whole job, the three cases where a dynamic code adds something, and the gating rule that puts a profile at risk.7 September 2026qr5 min readQR Code for CanvaCanva makes dynamic codes now, so the question is which plan removes the Canva logo. What each tier gives you, and when to place an external code instead.7 September 2026qr5 min readQR Code AnalyticsWhat a scan actually records, the three questions it answers honestly, and the four it is routinely used to answer badly.7 September 2026qr5 min readQR Code for a PDFThe code holds a link, not the file. Where to host it, how to keep it replaceable when the price list changes, and what a phone does on arrival.7 September 2026qr5 min readQR Code With a LogoHow error correction pays for a centre logo, how much you can really cover, why the corners break the scan outright, and how to test before print.7 September 2026qr5 min readStatic vs Dynamic QR CodesWhere the destination lives is the only real difference. Which to print, what static is genuinely better at, and the dependency dynamic asks you to accept.7 September 2026qr5 min readQR Codes on Product PackagingHow small a code can go on a box, which error correction level survives a fold, and why the destination should still be editable after 50,000 cartons ship.7 September 2026qr5 min readGoogle Play QR Code for Android and HuaweiWhich URL to encode for a Play listing, why market:// belongs nowhere near print, and how one code covers Android, Huawei and everyone else.4 September 2026qr5 min read5 Free Dynamic QR Code Generators Compared (2026)Scan caps, ads, sign-up requirements and plan-lapse behaviour across five dynamic QR code providers, sourced from each vendor's own pricing page.4 September 2026qr5 min readApp Download QR Code Generators Compared (2026)Which dynamic QR code tools route iPhone, Android, iPad and Huawei scanners to the right app store, and which charge extra or skip Huawei entirely.3 September 2026guideqr5 min readA QR Code for Your Menu, Without the ReprintWhat to link a menu code to, how to print it so it actually scans, and why a dynamic code stops a sold-out dish turning into a print run.3 September 2026qr6 min readFirebase Dynamic Links AlternativeFDL stopped working on 25 August 2025. Which replacement fits which need, and a free way to keep just the platform routing.3 September 2026qr5 min readApp Store QR Code for iOS and AndroidOne QR code that opens the App Store on an iPhone, Google Play on Android, and your website on a laptop.20 August 2026guide6 min readWhy Your Mouse Double-Clicks on a Single Click (and How to Fix It)A single click registering as two is almost always a worn switch. Here is what causes it, how to confirm it, and the fixes that actually work before you buy a new mouse.20 August 2026guide6 min readWhat Your IP Address Reveals About You (and What It Does Not)Your public IP shows your rough location and ISP, but not your name or street address. Here is what sites can actually see, and how a VPN changes it.20 August 2026guide6 min readHow to Create a Strong Password You Can Actually RememberLength beats complexity. Why a random passphrase is stronger than "P@ssw0rd!", how attackers really crack passwords, and when to let a generator do it for you.20 August 2026guide5 min readWhat Is a Good CPS? Click Speed ExplainedAverage click speed is around 6 to 7 clicks per second. What counts as fast, the techniques people use to go higher, and why raw CPS is not the whole story.20 August 2026guide6 min readWhat BMI Does and Does Not Tell You About Your HealthBMI is a quick population-level screen, not a diagnosis. What it is useful for, where it misleads (muscle, age, body composition), and what to look at alongside it.23 July 2026guide5 min readAPR vs Interest Rate: What Is the Difference?Interest rate and APR are not the same number. Here is what each one measures, why APR is usually higher, and how to use both when comparing loans.23 July 2026guide6 min readHow to Calculate Your Macros for Any GoalA practical walkthrough: work out your calories first, set protein by body weight, then split the rest between fat and carbs for fat loss, maintenance, or muscle gain.23 July 2026guide6 min readHow to Read an Internet Speed Test: Mbps, MB/s, Ping, and JitterWhat download and upload speed actually mean, why Mbps is not MB/s, what ping and jitter tell you, and how much speed you really need.