Listening to podcasts is an excellent way of keeping in touch with the language. Go to iTunes and download it. Then, visit the iTunes store and search for podcasts about learning English (there’s a large variety of them). You can also choose the topics you’re interested in and listen to them in English.
There are other sites where you can go and download podcasts. Check these out:
Don’t worry if you don’t understand everything. Just be happy when you do understand something … and don’t stop listening!