Amazon's pricing algorithm adjusts prices up to 2.5 million times per day. The difference between buying at peak and trough for a $300 product can be $60–$80. Here's how to make the algorithm work for you.

1. Set a price alert (the most important step)

Price alerts are the single highest-ROI thing you can do when shopping. Set your target 10–20% below current price, then wait. CheepoDeals monitors prices hourly and emails you the moment it drops.

2. Check price history before buying

The "Was $XX" crossed-out price on Amazon is often fabricated. Before buying anything, check the actual price history. If the product has been cheaper than the "sale price" in the last 3 months, it will likely drop again.

3. Compare total cost, not list price

A $289 product with $9.99 shipping is more expensive than a $295 product with free shipping. Always compare total cost. CheepoDeals calculates this automatically in its price table.

4. Add to cart, don't buy immediately

Amazon sometimes shows lower prices to cart items than to browsers. Add items to your cart 24–48 hours before buying — the price sometimes drops overnight.