I replace my bad habits with good ones: lots of dog walks, cleaning the house, taking care of my mother more, getting to know my neighbors better, watching favorite movies and shows,
anything other than the bad habits.
I'm now completely addicted to taking excellent care of my dogs, all of whom are older and two of the three who are 'special needs'.
I do indulge in a lot of dark chocolate often...
I don't think shopping in itself is too bad, as long as you're not spending outrageous sums that should go for bills and other expenses. Maybe treat yourself to a movie, either a DVD at home or a theatre.