Golf balls
Always make sure you have enough golf balls with you! There is nothing more stressful than having to go home in the middle of a round because you have run out of golf balls. Golf balls consist of several components; at least a core and a shell. However, many models now have multiple cores and multiple layers, each with different capabilities.
Some offer a softer feel, others a harder feel. Some offer more spin for more control in the short game, others less spin for long shots off the tee. Balls with multi-part cores and layers sometimes even deliver different characteristics at the same time.
However, it is not so important at the beginning which golf balls you choose. The important thing is that you always choose the same model if possible to ensure consistent and reliable performance.