You will find links to buy products from Amazon, Google and other partners. If you click on these links, you’ll find that the URL includes a small extra piece of text which identifies that the click came from my websites. This text is an affiliate code, and it means that I get a small percentage of the money you spend if you choose to buy that product, or, in some cases, other products from the site soon after. These affiliate links help pay the costs of producing my websites and ensure that the content is free to you.