 Millions of Americans are planning cookouts on July 4th. Here's Alexis Christophorus with tips on how to economize. For a party of 10, you'll save nearly 50 bucks if you fire up the grill at home. A new Wells Fargo report finds that prepping some of those classic cookout staples at home, including burgers, is still three times cheaper than dining out. And while it costs nearly $7 to buy those same burgers at a fast food restaurant, you can make them for just $2.16 at home with all the typical burger fixings included.