Use it all

Always use all of everything. Turn bottles upside down and drain to get the last bit from them. Tear open sugar and flour sacks to get it all; squeeze or cut open tubes of anything to use it all before buying more. You bought it to use, not throw away.

Powdered sugar

Make your own powdered sugar: Process a cup of granulated sugar and a generous tablespoon of cornstarch in your blender until it's powder. That's one less product to buy and store.