Finish all your things on Friday? Great, on Monday -- More things. Except now you're doing other people's things.
And what ends up happening is things don't get done because there are simply too many damn things to do.
Return that damn coffee maker thing. Call back your friend you haven't spoken to in 2 years thing. "What in the world is John's problem, let me talk to him" thing.
BUT -- If I do less things now, my fear is that I will have no things to do. So I do the opposite.
The end.