JSON-LD vs Microdata: Which Structured Data Format to Use
Schema.org vocabulary can be expressed in three syntaxes: JSON-LD, Microdata and RDFa. They can describe identical information, and search...
FinanceThe True Cost of Homeownership Nobody Budgets For
First-time buyers budget for the mortgage payment and are then surprised, usually within eighteen months, by how much more the house...
EnergyHow to Read a Solar Quote: Seven Numbers That Decide Your Payback
Solar proposals are long, glossy and structured to make direct comparison difficult. Two quotes for the same roof will present entirely...
FinanceThe Price-to-Rent Ratio: A 30-Second Test Before You Buy
Before running any detailed model, there is a single calculation that tells you which way a market leans. It takes half a minute and it is...
BusinessFactor Rate vs APR: Why a 1.3 Factor Is Not 30% Interest
Factor rates exist because they make expensive money sound cheap. A quote of "1.3" reads as thirty percent. Converted properly, a 1.3...
DeveloperHow to Cut LLM API Costs by 70% Without Changing Models
Most teams' first response to a large AI bill is to switch to a cheaper model, which trades quality for cost. There is usually a great...
FinanceDebt Snowball vs Avalanche: What Three Real Payoff Plans Show
The debate is older than personal finance blogging and it usually gets argued in the abstract. Avalanche people say the maths is settled....
BusinessHow to Set Your Freelance Rate: The Backwards Method
The usual method is to look at what other freelancers charge and pick a number in the middle. That tells you what the market tolerates. It...
BusinessNet Revenue Retention: Why It Predicts Valuation Better Than Growth
If you have one metric on the first slide of a SaaS deck, it should be net revenue retention. It compresses churn, contraction and...
FinanceHow Much Life Insurance Do You Need? The DIME Method Explained
The most common answer to "how much life insurance do I need" is a multiple of salary — usually ten. It has the virtue of being memorable...
LegalDo You Legally Need a Privacy Policy? A Practical Checklist
The threshold for needing a privacy policy is far lower than most site owners assume. It is not about running a shop or holding accounts....
BusinessInvoice Payment Terms That Get You Paid Twice as Fast
Late payment is rarely malice. It is almost always friction — an invoice that arrived at the wrong address, missed an approval window,...
Tools referenced in these guides
Refinance Calculator
Find out exactly how many months until a refinance pays for itself. Compares your current loan against a new one including closing costs, PMI and lifetime interest.
Debt Payoff Planner
Compare the debt snowball and debt avalanche methods across all your balances. See your payoff date, total interest saved and a month-by-month payment schedule.
Life Insurance Calculator
Calculate how much life insurance your family actually needs using the DIME method plus income replacement. Get a coverage figure and a recommended term length.
Solar Savings Calculator
Estimate solar panel system size, upfront cost after incentives, payback period and 25-year savings using your actual electricity bill and local sun hours.
Invoice Generator
Create and download professional PDF invoices in under a minute. Multi-currency, tax and discount support, custom logo, and nothing ever leaves your browser.
SaaS Metrics
Calculate MRR, ARR, net revenue retention, churn, LTV, CAC payback and the Rule of 40 in one place. Benchmarked against real SaaS ranges investors expect.