to me there's nothing more helpful or more important in interpreting scripture than checking those cross references and sometimes you'll find a trail of cross references, you go to the parallel verse and it has its own cross references that you can trace and it's a good way to do frankly topical studies.

If you wanted to do a study say for example on repentance start with a verse that talks about it and follow the cross references through and you'll see you know a number of things that scripture says and what the Bible says sometimes say in the book of Acts might help you better understand something that you find in one of the epistles.