Guides
Beginner-friendly money guides covering budgeting, saving, paying off debt and growing your wealth. Written in plain English with worked examples, and linked to the free calculators so you can run your own numbers.
How Much to Tip an Uber or Lyft Driver in 2026
The current US convention for tipping Uber and Lyft drivers is 15-20% of the ride cost, with $1-$3 minimums on short trips. Tipping is now socially expected in 2026 — it shifted from optional to standard over the past five years.
How Much to Tip at a Hair Salon (2026 US Guide)
The US hair salon tipping convention is 18-22% of the service cost, paid in cash if possible. The exact percentage depends on the service type, whether multiple stylists worked on your appointment, and whether the stylist owns the salon.
How to Build a 6-Month Emergency Fund
Building a 6-month emergency fund from zero takes 18–30 months for most households — and that is mathematically sound. Here is the phased playbook that actually finishes.
How to Set Up a 50/30/20 Budget
A practical 60-minute setup guide that puts the 50/30/20 budget on autopilot — open the right accounts, automate transfers, sort spending, and review monthly.
How Much to Tip on a $100 Bill: Restaurant, Bar, and More
On a $100 US restaurant bill, the customary tip is $18 (18%) to $25 (25%), with $20 (20%) the most common default. The exact percentage depends on service quality, group size, and whether a service charge has already been added — and the math is simpler than most diners realize.
How Much to Tip on a $50 Bill: The 2026 Cheat Sheet
On a $50 restaurant bill in the US, the customary tip range is $9 (18%) to $12.50 (25%), with $10 (20%) being the modern default for table service. Different service categories — takeout, bar tabs, delivery, salon — have their own conventions.
How to Calculate Compound Interest
A practical walkthrough of computing compound interest on real savings — the formula, worked examples in US dollars, the future-value-of-annuity shortcut, and the Rule of 72 mental trick.
How to Save $20,000 in 2 Years: The Step-by-Step Roadmap
Saving $20,000 in 24 months requires about $385/biweekly paycheck — roughly 16% of US median net pay. The plan is less about heroic frugality than about a small set of structural commitments held across two years rather than dramatic monthly effort.
How to Save $10,000 in a Year: The Math and the Method
Saving $10,000 in 12 months works out to roughly $192/week or $833/month — within reach of most US households earning at least the median income, but only if the plan is built around automation, structural cost cuts, and one durable income lever, not willpower.
How to Calculate Your Net Worth
A 30-minute, step-by-step walkthrough for calculating your honest net worth — pick a snapshot date, list every asset and liability, subtract, and set a quarterly reminder.
How to Save $5,000 in 6 Months Without Side Hustling
Saving $5,000 in 6 months breaks down to roughly $192/week or $833/month — reachable on an average US salary if you systematize three things: aggressive automation, two structural spending cuts, and one income channel you can sustain for half a year.
How to Save $500 a Month on an Average US Salary
Saving $500 a month on an average US salary is closer to ordinary engineering than to financial heroics — it requires moving roughly 10% of median take-home pay before you see it, and adjusting two or three category-level habits so the diverted money is not missed.