If you’re interested in deepening your practice and understanding of the teachings, you should listen to some dharma talks. Dharma talks cover a wide range of Buddhist topics and vary in length. Listening to talks can really help clarify or refresh some points about the teachings. As with guided meditations, you may hear something in a new way that makes sense to you. There are talks on teachings, applied mindfulness, and teachers who answer questions.
You can listen to talks anywhere. I listen while driving, running, and cooking. There are numerous sites offering free talks. You may search through iTunes for podcasts very easily. Some of my favorite podcasts are Against the Stream, Audio Dharma, and DharmaSeed. Try looking through talks for a topic that grabs your attention and give it a listen!