There is a very handy feaure - create corresponding header/source file I can't find in CLion. There is such feature in Visual Assist plugin for Visual Studio for example.
Such feature allows to create corresponing header or source file in same directory and same name for file which is currently in focus:
MyClass.h -> MyClass.cpp
otherClass.cpp -> otherClass.h
It is possible to use some smart settings like preferred source and header extension (.c, .cpp, .cxx, .hpp, .h). I find such issue hardly helpful and necessary.