Guides, formulas, and how-tos for every tool on SolidUtils.
What actually makes a password strong — length, randomness, and uniqueness explained. Covers common mistakes, passphrases vs. random passwords, how password managers work, and when 2FA matters.
Productivity GuideThe history, science, and practical setup of the Pomodoro Technique — including the cognitive research behind timed intervals, common variations like 52/17 and 90-minute blocks, and the mistakes most beginners make.
Design GuideA practical guide to the color wheel, primary through tertiary colors, warm vs. cool, and the six harmony schemes — complementary, analogous, triadic, and more. Includes a step-by-step palette-building process.
Health GuideThe complete guide to Body Mass Index — imperial and metric formulas with worked examples, all four WHO categories, and an honest look at what BMI does and doesn't tell you about your health.
GuideRandom number generators are more useful than they look. This guide covers practical applications across three audiences — from classroom fairness to software testing to game design.