Try and remember what you are trying to accomplish here Missing. Do you want to have tomorrow end up being just like this morning again? I think you already know the answer to the question about having "just one"....but only you can truly answer that.
Try something different - take a different route home. Rent a movie, go for a walk, stop at a guitar store, just anything to keep your mind off picking up that first one. Because you know what will happen if you do.