What are the examples of most popular services we tend to make use of really systematically?

Services is a term that has various meanings. Inter alia people who have bigger experience in the field of economics are rather likely to correlate it with one of the most influential areas that contribute the most to the progress of each economy. On the other hand, majority of people, who are not keen on the previously mentioned field, tend to think about the above analyzed term rather like something that we benefit from systematically, like going to a hairdresser, having our vehicle repaired by a mechanic etc.