Demand & trends

1. Start from the supplier catalogue, not from ideas. Open a wholesaler you can actually buy from and list their categories. Anything you can't source is noise, however well it trends.
2. Cut on FBA economics before you research anything. Sell price £12–35, under 1kg, not fragile, not liquid, not battery, not food, not branded. Below £12 the fees eat it; above £35 your capital per unit gets uncomfortable early on.
3. Take the season that's 60–120 days out. Not what's selling today — that ship sailed before you could order it. See the window below.
4. Pick a maximum of ten terms per session. Google Trends compares five at a time. Two batches is a session. More than that and you stop reading carefully.
5. Reject fast, on one criterion. Falling year on year, no clear season, or a seller count already in double figures — bin it and move on. You're looking for reasons to say no.

Google Trends export

Keepa export