Affiliate disclosure

As an Amazon Associate I earn from qualifying purchases.

A few guides on Dough Ratios link to Amazon search results for a type of product, such as a test kit or a measuring tool, when having one genuinely helps with the task on that page. If you buy something after clicking one of those links, we may earn a small commission at no extra cost to you.

Our rules for these links

• At most a few per page, and only where the item is useful for that page's task.
• Never inside a calculator, never on trust pages, and always disclosed at the top of the page.
• Each one is marked "(on Amazon)" and uses rel="sponsored".
• We link to a product type, not a sponsored brand. We do not publish prices, star ratings or "tested" claims, because we have not tested products and prices change.
• Commissions never change a calculation or a recommendation.

Questions? Contact us.