As early as 2005 and as late as 2012 or 2013, there were many shots, and sometimes entire scenes that I filmed alone. I guess it is times like these that the filmmaker most resembles the sculptor, the writer, or the composer. It is just you and what you hope to create.
By myself, I recorded a lot of landscape scenery. Not only did I use this during the opening title and end credits, but also, it was handy to have in case of what is called B roll--other shots not of the main action that one can cut to. I also recorded actions and activities around me--the sunrise, planes landing and taking off, a lunar eclipse, cars driving by, etc.
I can think of at least two scenes (many I decided to cut) in the final film that involved me setting up the camera with a best guess for lighting, sound, framing and performing in front of the camera. In one scene, I simply played the one character in static shots. For another scene, I played two characters (one had a bag over his head), and then combined the two performances while editing.
It was probably when filming alone that I felt like an independent filmmaker with a capital "I". Everything in each frame was completely controlled by me. The passage of time also seemed most noticeable when I was alone. Although I filmed alone quite a bit while making SLIM, I do prefer to interact with other people and make better products because of that interaction.