I bet this is different for all people and families. I have found that when I go cold turkey, eventually I can't help myself if I'm exposed to the stuff, and then I go out of control.
When I notice I'm eating too much junk, I have had the best luck being firm with myself but going gently and relatively slowly as well. It is true that the less junk you eat, after a certain point, the less junk you crave. It's getting to that point that is hard. I get withdrawl, I think
Anyway, I once read a great little book called _If You Eat At the Fridge, Pull Up a Chair_. The author theorized that the best thing to do is keep a limited amount of the junk you like best in your purse at all times. If you get a craving, have a nibble, and then put it back, realizing that it's always there if you want it again. When I've done this, I've foud that at first I will "nibble" a chocolate bar and then some in less than an hour. Over time, though, over months of commitment and consistency (the junk must never run out LOL!), I am not likely to go for the junk often.
Other things I've found help:
*Having healthy snacks more accessible than junk. For instance, cook meals on the weekend, and then fill your freezer with these meals to block the ice cream sitting at the back of the freezer
. Then, put some yogurt or some carrot sticks in the very front of the fridge.
*As I said above, if you can cook meals on the weekend and keep them ready in the fridge for the week (or cook meals every two-four weeks and freeze them), it does help. Getting in the habit is hard, but it cuts down the temptation to eat out (this is a big struggle of mine too).
*Someone on here once suggested I buy a salad spinner (which I still plan on doing as soon as I have the money) because it can keep salad very fresh in the fridge for a whole week. Then, when you're tempted to snack on junk, snack on the salad first.