If you go into your refrigerator and the first things you see are cheese cake, pizza and beer, you may have a hard time getting to your salad crisper drawer where the healthy stuff is.
One trick that I do is put all the junk food (yes, there is junk food in my fridge too) out of sight in the bottom drawers of my fridge. Then I keep all my fruits, veggies, hummus, etc. in plain sight on the shelves. This way the first things I see are healthy, so I end up reaching for the healthy stuff rather than rifling around the bottom drawers to find that tin foil wrapped pizza my husband brought home from a work meeting. (Thanks honey!)
If you're one of those folks with two refrigerators (one in the garage, perhaps), then keep your unhealthy items in the fridge that's not primarily used.
Try it out and let me know if it works for you in the comments section below.