Ok i am currently on mission to improve my coding practice. having learned from books i have never really learned when to use a .cpp file.
I know that there are differences but never to sure exactly what they are so i normally take the easy way out and use header (.h) files.
What is wrong with me using one .cpp file and all the rest as .h files?
is there anything wrong with that?

Thanks to anyone who can clear this up for me