Blog
Guides, tips, and updates to help you get more done.
What a UUID Actually Is (and Why Two Are Never Going to Collide)
A UUID looks like random noise, but the format is precise, and the odds of ever generating a duplicate are so small the math is almost more interesting than the ID itself.
What "Password Entropy" Actually Means (and Why Length Beats Complexity)
The bits-of-entropy number next to a generated password isn't marketing fluff — it's a real, calculable measure of how many guesses an attacker would need. Here's the actual math.
Why "Item 10" Sorts Before "Item 2" in Some Tools (and How Natural Sort Fixes It)
Plain alphabetical sorting puts "Item 10" before "Item 2" — because it's comparing characters, not numbers. Here's what "natural sort" actually fixes.
Cleaning Messy Lists: How to Remove Duplicate Lines Without Excel
Deduplicating a list of emails, keywords, or log entries doesn't need a spreadsheet — but it does need to know exactly what counts as a "duplicate."
UPPERCASE, Title Case, Sentence Case: When to Actually Use Each One
The four common case styles aren't interchangeable — here's what each one is actually for, and the fastest way to fix text that was typed in the wrong one.
Character Limits That Actually Matter: SMS, X/Twitter, Meta Descriptions, and More
A practical reference for the character limits you actually run into — texts, tweets, meta descriptions, title tags — and which ones count spaces.
How Word Counters Actually Count Words, Sentences, and Paragraphs
Word count sounds like a solved problem, but tools genuinely disagree — here's exactly how words, sentences, and paragraphs get counted, and why the number can shift between tools.
Percentage Change vs Percentage Points: The Mistake That Wrecks Financial Reports
An interest rate moving from 5% to 7% is either a "2-point" increase or a "40% increase" — and which one you say completely changes how big the change sounds.
PDF or Word? Which Resume File Actually Gets Through
The honest answer is "it depends on the ATS you can't see," but there's a clear default and a clear exception worth knowing.