Categories. With them, everything becomes easier.
Learn how to properly manage categories of services, materials and products.
If the number of services (materials, products) goes over 10-12, it becomes increasingly difficult to work with them. Initially, you can sort your services (drag and release the right edge).
When the number of items exceeds the 2 screens, sorting is no longer enough to keep everything organized. It is necessary to group up the services.
Create a Category and add it to the service.
Note that a single service may belong to several categories. For example,
Men Haircut can be in two categories at the same time:
You can use categories with materials and goods using the same methods.