When someone reaches their 40th birthday then they often want to make it an occasion to remember. If this is the case with someone that you know, then you might want to make sure that the gift that you buy for them will be really good. This is not always easy to achieve though as it can be difficult to know what sorts of things to choose. We have therefore put together a list of items that we feel will make great 40th birthday gifts to help you to be able to more easily select the best present that you can.