I usually do the following: - if function A and B are always used together, than they are one file. - if linecount gets to big, split A and B into separate fi

I usually do the following: - if function A and B are always used together, than they are one file. - if linecount gets to big, split A and B into separate files - if function C is shared between modules than it belongs in it's own file So far it worked out great.