If your house is anything like ours, no one likes to eat bread crusts. When you figure an average loaf of bread has about 18 slices (give or take a few), that means about 10% of every loaf would be wasted if the crusts were thrown out!
So, what I do is keep an empty bread bag or gallon size Ziploc bag in the freezer. Every time we get to the end of a loaf and only have crusts left, I throw them in the bag.
Then, when it comes time to make a meatloaf, breaded chicken fingers, or any other recipe that calls for bread crumbs, I just take a few crusts out of the freezer, chop them up in the food processor or blender and voila – – I have used up my crusts and have great crumbs for my recipe.
(NOTE: If you don't use your crusts often, be sure to opt for the zip-top bag rather than a bread bag.) The crusts are also great for making bread pudding.
One more thing I like to make with leftover bread crusts are these Bread Crumb Cookies with Chocolate Chips. The recipe calls for slices of bread, but you can just substitute about a cup and a half of crust crumbs instead.