You need sufficient coverage to edit a video. With just a few simple bits, you will have enough to make interesting videos when it's time to edit.
Shoot from a finite set of positions to get your videoat least two, and probably three or four. More than that will likely produce too much coverage, the majority of it not useful.
Always shoot a wide shot and a medium shot from a given position. If you have time, shoot a close-up too. The medium shot is your primary shot. Make sure you have enough material from each shot.
Wide shots need to be longer than close-ups. Think of recording your wide shots and establishing shots for around 15 seconds each. Medium shots and close-ups can be closer to 10 seconds.
Look for shot dyadsa shot/reverse shot, a shot/cutaway shot, a shot/establishing shot. These make editing a snap and give your projects a sophisticated look.