Those are all great ways to save. In fact, if 2 people in your home smoke and are finally able to quit, the savings per year at a carton of cigarettes a week per person is right around $2500.
Credit cards arent even a necessity when you can right down to it. You can even rent cars on your banks debit card in most places. So those fees and payments could definitely be done away with.
Paying extra on your mortgage can slash a couple of years off the final payment. We try to send in extra money on our mortgage payments several times a year.
I try to follow all this advice I read about, but it is not easy, I do smoke, and have no plans on stopping, but keep others things slashed down to make up for it.