The word layer simply points to AutoCAd..... Please, don't go this way, named objects, groups, selection sets etc are much more interesting. Layers can help because we don't have standard categories.... For example we don't have walls, doors, windows so we can choose to hide doors for example.... But, using just layers is not the right way to do this.
I was working with AutoCAD for years, thinking that there is no other way... Now I use Revit and I can see that everything can be done without layers...