BBC Radio's 6 Minute English Podcast is great for weekly doses of useful English for practical situations. It is one of many podcasts from the BBC.

From BBC Website

Learn and practise useful English language for everyday situations with the BBC. Your weekly instruction manual for saying or doing something in English is published every Wednesday. Each programme is six minutes long and contains examples and explanations to help you improve your knowledge of the English language across a wide range of topics.

Visit BBC Radio's 6 Minute English Podcast.