I really need to quit smoking, but it is soooooo hard. Tips and advice please!

my husband quit smoking recently. he had been smoking for easily 10 years or more. he was going to try the gum or something but it is so expensive. all he did was slowly work himself off of them. he knew about how many he had in one day, so each week he just tried to have one or two less. he worked himself down to the point where he only was having 2 a day so he just quit completely. it has been almost 3 months and he says he feels fine. my dad is trying to quit too. i think he is taking chantix. i know its some pill the doctor prescribed him but i'm not sure if that is what it is called. he said it seems to be working pretty well for him.