What kinds of things have you completed lately that you're happy to have done?
I just finished a simple project that snowballed into hand-scrubbing and mopping the whole hallway. I started out just swapping books from a smaller bookcase into a larger replacement bookcase. In doing so I found that a deep cleaning needed to be done. Now the hallway is clean, the new bookcase is in place, and the books have been dusted and sorted instead of being stacked all willy-nilly. And I also have room to put away some of the books I have stacked all over the place in another room.
It feels good to finish something. Unfortunately I think the scrubbing needs to be continued through the rest of the house.