Each of us is daily in the role of a consumer of goods and services, because we all buy various goods, use utilities, medical, household and other services, etc. This handbook addresses the main issues of concern to citizens that may arise when buying, operating goods, providing services; various options for purchases are described (on credit, remotely, online purchases, etc.); attention is focused on the quality of goods, works and services, their safety, the timing of claims, return and exchange of goods, etc.