I feel so much better when I avoid dairy
For me, I have a corn allergy which was only diagnosed in the last year, and I was shocked at how much my eating simplified and my grocery bill went down when I started becoming vigilant about not bringing corn into the house. That stuff is in everything! Most snack foods and prepared foods are out for me. If you emilinate corn (or at least, corn syrup) from your diet, you will not be able to buy all those empty calorie snack foods.