DDadCashFlow

Resources / The practical side of money

Make room for
what comes next.

A little less spreadsheet. A lot more perspective. Test a plan, challenge an assumption, and find the trade-offs hiding behind the numbers.

01 Pick a question02 Play with the possibilities03 Understand the trade-off

The money lab

Less guessing. Better decisions.

Live scenario modeling
What are you working on?
One input. Different possibilities.

Monthly money to put to work

The same cash models extra debt payments, investing, or saving—not all three at once.

Slide up to $2,000 or type an exact amount. Not an allocation plan.

01 / MAKE A PLAN

Less interest. More freedom.

Compare two payoff paths using the same monthly budget. Freed-up payments keep working until every balance is gone.
Your payoff approach

Highest APR first. Prioritizes interest savings.

Debt 1

USD · adjustable assumption

Percent · adjustable assumption

USD · adjustable assumption

Debt 2

USD · adjustable assumption

Percent · adjustable assumption

USD · adjustable assumption

Debt 3

USD · adjustable assumption

Percent · adjustable assumption

USD · adjustable assumption

Extra above minimums: $350. Change it in the shared control above.

Your debt-free horizon2 yr 3 mo

$870 / month, including minimums

Interest paid$2,753
Total paid$23,453
Remaining debt by month for both payoff strategies$0$10.4K$20.7K0 mo14 mo28 mo
Months from now
AvalancheSnowball
View sampled chart data
Remaining debt by month for both payoff strategies
Months from nowAvalancheSnowball
0 mo$20,700$20,700
3 mo$18,757$18,761
6 mo$16,724$16,744
9 mo$14,595$14,632
12 mo$12,365$12,420
15 mo$10,029$10,101
18 mo$7,586$7,669
21 mo$5,086$5,170
24 mo$2,545$2,630
27 mo$0$49

This path costs $87 less in interest than snowball.

Your payoff milestones

01Credit cardMonth 16
02Store cardMonth 17
03Car loanMonth 27
Behind the numbers Assumptions & limitations

APR ÷ 12 applied to each opening monthly balance, with interest rounded to cents. Minimums are paid first; the remaining fixed budget goes to the highest APR or smallest remaining balance. Paid-off minimums roll forward. The final payment is capped at what you owe.

No new purchases, changing rates, fees, daily accrual, promotional periods, or lender-specific minimum formulas. Enter each required minimum yourself; this model keeps it fixed. If no active balance declines, or payoff exceeds 100 years, no successful payoff is reported. CFPB debt resources ↗

Illustrative USD scenarios. Inputs stay in this page. No account connection.Your examples stay while you switch tools; refresh resets them.

The reading room

Go deeper, not down a rabbit hole.

A small, intentional library. Primary sources, useful frameworks, and fewer hot takes.

01

Build your foundation

Less noise. More financial footing.

TOOLKIT

Your Money, Your Goals

CFPB worksheets for cash flow, bills, debt and the everyday decisions behind a plan.

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GUIDE

Emergency funds, explained

Start with the why, then think through where to keep money you may need quickly.

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BOOK

The Psychology of Money

Morgan Housel on behavior, patience and what enough might mean to you.

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02

Think like a long-term investor

Understand the engine before the ticker.

LEARN

Investor.gov learning center

The SEC's investing basics, financial tools and questions to ask before investing.

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GUIDE

The quiet cost of fees

Look beyond the return assumption. Understand how expenses enter the picture.

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COMMUNITY

Bogleheads: getting started

A community reference for diversification, index funds and a repeatable investing process.

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03

Explore the mechanics

Advanced should mean understood, not exciting.

EDUCATION

Options Industry Council

Explore strategy mechanics, payoff diagrams and what can go wrong before putting capital at risk.

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ESSENTIAL

The options risk disclosure

OCC's Characteristics and Risks of Standardized Options. Read before considering a trade.

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CASH TOOLS

Treasury bills, from the source

Learn auction mechanics and maturity terms. Compare access to cash, not just headline yield.

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Before you close the tab

The best plan is one
your real life can support.

A bigger number is not always a better decision. Consider your cash buffer, your time, your tolerance for loss—and who is counting on you.

Keep learning in the journal
Tools for thinking. Not personalized financial advice.

These educational models use hypothetical assumptions, not live market data. They do not account for every tax rule, account restriction, fee, or personal circumstance. Returns are not guaranteed; investments and options can lose money. Check your inputs and the methodology before relying on an estimate. External resources are for learning, not endorsements of a product or strategy. No affiliate links are included on this page.