So true, dragon. We do need a like button! Soooo many good ideas above.
When I was going to have the place to myself, I would try to think of it as a chance to do things I enjoyed but didn't tend to do much when others were home.... like turn up some music loud and dance all over the living room (not just hiding back in my room). No one to laugh at how much I get into it or at my goofy style, lol. Or make a little special meal, say, with shrimp. Because it was only me, I'd just need a very few. And speaking of cleaning, I'd definitely do that because it makes me feel calm and accomplished. And at such times it would last long enough to actually enjoy!

Will be thinking of you as always! Let us know what you come up with.