I think the word "may" in the title seems out of place, but I'm glad I'm not the only one who thinks this way.
But for me the solution was to learn to recognize when emotional optimums do come, because they do. If you put off taking out the recycling because you aren't in the mood to be active, then you have to recognize the next time you are in the mood to be active and remember that you have to take the recycling out.
This doesn't work for dieting because your moods will continue to go up and down and if you are trying to diet then overeating when you are in a bad mood is possible the entire root of your problem to begin with. But for tasks you have to complete, I think putting things off until they don't seem to depressing is great.
Sure, I'd like to just not be in a bad mood, but as the article says, you can't just tell a depressed person to cheer up.