I rarely use modules because they are not available on the server where i deploy my scripts.

Since i run windows at home , I rarely write perl at home for personal purposes .But yeah i installed some modules including Path::Tiny the other day . I plan to explore that and some XML parsing modules as well dabble with OO programming in perl , which i haven't done before.Infact all the lagacy scripts i maintain at my company are huge ~5k lines of code and most scripts are similar to other scripts.