I do 1 all the time; I’ve done 2, but I don’t see movies very often in the theater (I usually download them, which still results in solitary viewing anyway, maybe even more solitary since there are no strangers around as there would be in the theater); I’d do 3 if I were capable, and 4 if I had a mountain around.
I enjoy being alone. As an only child, I’m used to it. If I like having other people around, it’s usually because I like to observe them. (That, though, like loneliness, eventually gets tiresome. I guess I need a balance.)
@pdworkin: I know that I feel much less lonely when my dog is around.