James did the same as your husband TG--he was sick and was able to stop cold turkey (3 1/2 years ago).
A guest speaker at church one time was talking about how to quit a bad habit. He said you can't dwell on what you are not able to do anymore, but you have to find something to do instead. He carried a small notebook in his shirt pocket. He used to smoke and that is where he carried his cigarettes. He started carrying the notebook instead. I can't remember exactly what he said he wrote in it, but you could do just about anything with it. Write a recipe down, see if you can write down all the states in alphabetical order, write a poem, etc. Something that gets your mind onto something positive.
Also remember that it takes 21-30 days to give up an old habit or start a new habit. And if you slip a little, don't give up. A slip is just a slip, it isn't defeat.