Did you know that you can add your own cross-references to the listing? There are even several different methods for that:
Adding xrefs is very useful if IDA missed some of them and the graph looks ugly. Another benefit is replicated comments.
See a demo below the cut.
If some lines of the demo look greenish, it is not your monitor. I have a plugin which colorizes the listing for me. It is an experimental thing, I’ll publish it later…