Coding Constants

I'm writing my own source member with my own constants, so that each time I need a constant I will be able to copy from that member into the member I am editing. That way I'm sure to use the same names and hopefully gain some time. You've guessed it, we aren't putting our constants in copybook members. We do have one copybook member that contains a lot of general constants with no particular relation to each other. Here's an example :

* No
D cNo C CONST('N')

Apart from the constant itself, don't you just love the comment?

When I have completed my own copybook members, I'd like to propose that everyone uses them. This will let us standardize the names. And then we would(should) no longer see things like :

D cRD4 C CONST('RD4')

But instead :

D cCLIENT_CODE_FOOTSIZE...
D C 'RD4'

Now, when the copybooks are ready, I think they could just be added to each module that is currently being modified. My question is, this seems so easy and natural to do. Am I missing something?