One of the biggest missteps is shooting from the hip on keywords.
Skip the guesswork and lean on data from tools like Google’s Keyword Planner or SEMrush to see exactly how real customers phrase their searches.
Another pitfall is treating mobile traffic as an afterthought.
More than half of Google ad clicks now happen on mobile phones, so a landing page that loads slowly or forces users to pinch-zoom a tiny call button is money slipping through your fingers.
Finally, Google Ads is not a “set and forget” type of thing.
You need to carve out time each week to review the search-terms report, add negative keywords, and tweak bids.
Those small, regular adjustments keep costs under control and performance heading in the right direction.