Act as if your day matters.  That means preparing yourself as if you were going to get guests or were going to be in public.  That means to me, first shaving and putting on my Brut.  If I need a shower, taking it.  Getting dressed properly.  Putting on your shoes and clean clothing on.  And not trampsing around the house in slippers.  It really does make a difference in your attitude.  By all this preparation you are telling yourself this day matters and I will not waste it.  You may not feel that right away but the rest of you will follow if you act as if the day matters.