1. Break it up into pieces and toss it in the blender to make bread crumbs. Put your breadcrumbs in a zip lock bag and freeze them for easy use in recipes.
2. Make french toast. Stale white bread makes great french toast.
3. Cut your stale bread in cubes, toss it with oil and dry herbs and then spread it on a baking sheet to make fantastic homemade salad croutons. Bake at 350 degrees until crunchy.
Finally, save that leftover bread bag as well. Leftover bread bags are great for keep leftover popcorn, muffins and bisquits fresh.