Macros - organizing code

[mantielero]

I don't have much practise with macros and I normally end-up with big ones. How 
can I split macros bearing in mind that I might need to reference identifiers 
from one sub-macro into another submacro?
    
    
    mymacro:
       submacro1:
          ...
       submacro2:
          ...
       submacro3:
          (here I might need references to identfiers created in submacro1)
    
    Run

Any project (simple) that I might look for inspiration?