I have personally run into issues where not having enough footage made my life incredibly difficult. After watching and learning from the video series Directing Motion I’ve learned some basic principals that help in everyday shooting situations. We tend to think of a shot and shoot it then move on instead of getting the wide, tight and moving versions. Plus switching up the angles a bit to get some variation. Caleb goes through the various techniques that have improved his shooting such as transition shots and varying shots. I would suggest looking through the web for transition work as there are many that you can add to your film.
Check this video out if you want to see a ton of transitions: