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The five-minute buying flow and honest scope.
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Stop trusting the sale label.
I built an Excel workbook around the checks I actually use before buying: comparable unit prices, seller and return risk, current price history, and the point where a bigger package stops saving money.
136decision-verified families
658searchable reference families
12deal and price-check tools
11usable workbook sheets
What is actually in the workbook
A real workbook with an honest scope.
The file includes reviewed starting points and a separate reference database. Neither is a promise that the cheapest live price or every listing has been checked for you today.
The workflow
The five checks I use before buying.
The system reduces research time without pretending the market stops moving after the file is downloaded.
- 01
Define the job
Write what the purchase has to do before a product page chooses the criteria.
- 02
Find the first check
Use the verified retailer and backup as a starting point, not an unquestioned winner.
- 03
Normalize the price
Compare ounce, sheet, load, watt, year, mile, or useful cycle.
- 04
Verify today
Check exact model, history, seller, shipping, tax, return cost, and risk.
- 05
Set the rule
Buy when it clears the target, or place it on the deal tracker and wait.
Try the logic
Sticker price is not the metric.
The workbook includes reusable unit-cost and bulk break-even calculators. This small example shows the first normalization step.
Normalized answer
Option B wins.A costs $1.50 per unit. B costs $1.08 per unit. The better option is 27.8% cheaper by the unit that matters.
Inside the file
Every sheet has a job.
Verified Core
136 reviewed families with first check, backup, unit, and failure mode.
Reference Database
658 deduplicated families for broader Ctrl+F coverage.
Store Playbook
What each retailer is good at and where the trap usually sits.
Deal Stack
Price-history, coupon, resale, and retailer verification tools.
Unit Cost Calculator
Normalize the package before comparing the sticker.
Bulk Break-Even
Find the point where quantity actually saves money.
Deal Tracker
Log the real low instead of trusting sale language.
Methodology
The rules behind every decision-verified row.
Change Log
A dated record so the system never pretends to be timeless.
License
Clear personal-use terms for the Founding Edition.
Each verified row has a specific first check, backup, comparison unit, bulk rule, failure mode, and evidence path.
Founding access
Get the purchase link when checkout opens.
The Founding Edition is complete. Join for the secure purchase link when checkout and automatic delivery open. You will also receive material update notices, not a daily promotion firehose.