Buying guides
We created the Buying Guides section to answer the questions that don’t sit neatly under one cleaning category. How Amazon Subscribe & Save actually works, why cost-per-wash is the metric we use, and when buying from Amazon UK genuinely beats the supermarket.
If you’re new to the site, the three guides below are the best place to start. They explain the methodology that runs underneath every category ranking on this site.
All guides
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Amazon vs Tesco: when bulk-buy cleaning products are actually cheaper
The default assumption, that Amazon is cheaper than the supermarket, is wrong about a third of the time on cleaning products. This guide explains when Amazon UK genuinely…
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Cost per wash explained: the maths behind our rankings
Every ranking on this site uses cost-per-use as the value metric. Pence per wash for detergent, pence per tab for dishwasher tablets, pence per 100ml for surface sprays.…
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How Amazon Subscribe & Save actually works
Amazon Subscribe & Save is the cheap-cleaning-products super power if you use it correctly, and a small money trap if you don't. This guide explains how it works…