Here's a real-world example: Say you're selling skincare. "Skincare" as a keyword? Way too broad (and expensive). But "organic face moisturizer for sensitive skin"? Now we're talking. Those shoppers know exactly what they want and are ready to buy.

Pro tip: Sometimes, the best keywords aren't the most obvious ones. Look for those specific, longer phrases. They might get less traffic, but they're usually cheaper to bid on and convert like crazy.

Remember, it's not about finding the most keywords - it's about finding the right ones. The ones your ideal customers actually use when they're ready to hit that buy button.

Here's why this matters for PPC: Amazon's not dumb. When your listing matches your ad keywords, you're speaking the same language as your ideal customer. Result? Better ad placement and lower costs. Your organic rankings get a boost too - it's a win-win.

Keep in mind that nailing your listings takes time. But it's way cheaper than throwing more money at underperforming ads. Get this right, and you'll see your ACoS drop while your sales climb.

If you're selling premium watches, you don't want to show up when someone searches "cheap watches under $50," right? Add "cheap," "budget," and "affordable" to your negative keywords. Let those bargain hunters find someone else while you focus on the customers who appreciate (and will pay for) quality.

Pro tip: Get specific with your match types for negative keywords, too. Sometimes, you only need to block certain phrases, not entire word families.

But here's where it gets interesting: Sometimes, a low ACoS isn't all it's cracked up to be. Sure, you're profitable, but you might be leaving money on the table. If you're crushing your target, that's your green light to scale up. Bump those bids, test new keywords, maybe even expand to other products.

One hard truth we've learned: Your ACoS will bounce around like a kid on sugar. That's normal. The key is staying on top of it. Make checking your numbers a daily habit - catch problems early, spot opportunities faster.

Pro Tip: Build up your review base before diving into PPC campaigns. It'll give your ads a stronger foundation to work from.

Remember, reviews aren't just about praise - they're a dialogue with your customers. Use them to improve your products and service. Happy customers lead to more sales, and isn't that what we're all after?

Pro Tip: Use 'dayparting' to allocate more of your budget during your prime conversion windows. It's about being there when your customers are ready to buy.

Remember, PPC success isn't just about outspending competitors. It's about spending smarter. By aligning your budget with customer behavior, you'll get more bang for your advertising buck.

Pick what fits your products and market.

A/B test different price points. See how customers react and what impacts your bottom line.