Shopping Tips for Bulk FoodsWhether I'm shopping for my family's dinner, or for recipes I'll use in a pop-up restaurant charity dinner, by buying the ingredients in bulk, I can save as much as 75 percent of what it would have cost to get the same amounts in pre-packaged products.  Filling a shopping cart with items from the bulk food section of the grocery store is a key way to both cut food costs and reduce waste, since you can buy small amounts of foods that you don't need much of or don't use very often.  Measuring out 1-1/2 cups of ground ginger I'll need for a fund-raising dinner. In the regular spice aisle, buying this much ginger would cost $15.03. In the bulk section, it cost just 98 cents.  Size matters when it comes to bulk food sections. Larger bulk food sections have the largest varieties of nuts, trail mixes, rice, and sweeteners.  Spices from the bulk foods section are usually a fraction of the cost of the bottled versions found in the spice aisle. And there's often quick…