Really good advice given above! I do two additional things that might help:

- Think about often recurring dreamsigns.
- Briefly consider the most common locations, people and activities you encounter in your life.

For me, this really helps. In many of my dreams I am driving a car; in even more, I am at my workplace, or with my family. Just thinking about these locations, people and actions often sparks memories of new dreams or adds to dreams I already remember. On average, I would say this gets me around 4-5 extra dreams per week.