Another thing you can do is Kegels. Such exercises strengthen all your pelvic floor muscles, including anal and urinary sphincters.

Do a web search on "Kegels for men" and read whatever you find. You will find out more about how they work, what muscles they work, and how they help. There are some side benefits to doing them, that I won't mention here. :-D You will find out about it when you read the other sites.