Nora Vionelle on Instagram: "Predict Hidden Coupons Using Price History Tools A powerful strategy is using price-tracking tools like Keepa or CamelCamelCamel to predict when brands usually release coupons. If the history shows a 20% discount every 2–3 weeks, chances are a hidden coupon will return soon. Also, when a product’s price increases slightly (5–10%), it often signals that a coupon is coming — creating the illusion of a deeper discount. Waiting 24–48 hours may reveal a new secret coupon.