Organize your campaign into well-defined ad groups based on product categories or keyword themes. This allows for better control, optimization, and tracking of performance for specific products or keyword groups. Use broad match keywords to cast a wider net and reach a larger audience. Regularly review search term reports to identify irrelevant or low-converting search terms. Add these terms as negative keywords to prevent your ads from appearing for irrelevant searches. This helps improve the relevance and cost-effectiveness of your campaign. Apply different bidding startegies on your PPC campaign like Dynamic down only, Up & down or Fixed bids.