The minimum amount you should spend on a Google AdWords campaign can vary based on factors like your industry, competition and overall advertising goals. As a general rule of thumb, it’s recommended to start with a daily budget of at least £10 to £20 to get meaningful results and gather enough data for optimisation. However, keep in mind that this is just a starting point and you may need to adjust your budget based on performance and the competitiveness of your keywords. It’s crucial to regularly monitor your campaign, tweak your strategy and gradually increase your budget as you see positive results. Remember, flexibility and a data-driven approach are key in the world of Google AdWords! If you have specific details about your business, I can offer more tailored advice.