Sidshappymomma is correct about residue in the soil, but the dirty dozen list is helpful when the budget has to stretch. I exchanged like for like when we went organic so groceries like peanut butter, dairy and meat were switched to their organic counterparts.I bake with organic ingredients because its cheaper to buy organic flour and the attendant leavenings and flavorings than buying baked goods from the store. Veg had to be changed around. I buy more frozen veg than fresh in order to eat organic.Carrot,celery,onions and potatoes are fresh but berries and broccoli, bell pepper strips, other frozen greens are in evivdence now. When we ate conventional veg I never bought frozen. Sometime if I have to get dairy that isn't organic I get european brands,on the whole though we try to buy organic at all times. Think of what you ordinarily buy and try any organic version.It's all well and good if you can go entirely organic but any organic is wonderful. Even if one or two things are organic in your cart your telling the store owner that there's a client base that wants that product.