Privacy policy

A plain-language overview of data handling on this site.

Last materially reviewed 2026-09-21

Quick answerThis site is designed to collect as little reader information as practical.

What to know

Basic site data

The hosting provider may process standard request information such as an IP address, browser type, requested page, and time of access to deliver and secure the site.

What to know

Measurement

Our worksheets run locally without saving or sending entries. The hosting provider processes requests needed to deliver and secure this site. Separately installed audience measurement respects the consent controls and details shown on this page.

What to know

Outbound links

Merchants, affiliate networks, and cited sources have their own privacy policies. This site does not control how those destinations process information after a reader leaves.

What to know

Sensitive information and retention

Do not send passwords, payment details, health records, or other sensitive information through editorial correspondence. Operational records are retained only as needed for security, measurement, and legal obligations.

Optional Google Analytics and your choices

Google Analytics 4 is optional. We do not load its tag until you choose Allow analytics. Rejecting analytics does not restrict this site. Use Analytics choices on any page to change your decision; withdrawing stops future measurement, clears this site's Analytics cookies where accessible and reloads the page. It does not erase information already received by Google.

When allowed, Google receives page visits and clicks on verified commission-bearing affiliate links, together with technical information needed to deliver its service. Google may process browser/device information, network information and cookie identifiers. We explicitly send only this site's known page path, program label, CTA placement and destination hostname. We do not send form contents, contact details or the affiliate URL/query string. A recorded affiliate click is not a sale, revenue or a paid commission.

Advertising personalization, Google Signals and user-provided data collection are not enabled. Our consent choice is stored on this device for up to 180 days; Analytics cookies are configured for up to 180 days. Clearing browser storage removes your saved choice. We configure the shortest available user/event data retention; aggregated reports can have different retention. The hosting provider still processes requests needed to serve and secure the site regardless of your analytics choice.

See how Google uses information from sites that use its services and Google's Analytics opt-out tool. Merchant and affiliate-network practices after leaving this site remain governed by their own policies. This explanation describes our implementation; it is not a claim that a consent banner alone establishes legal compliance.