If you spot ants around the house, sprinkle a line of flour somewhere in the area.
This article explains what strong flour is, when to use it, and how it compares with other types of flour. Repel Ants.

Milled from a mixture of soft and hard wheat, with a moderate protein content in the 10 to 12 percent range, all-purpose flour is a staple among staples. Clean Playing Cards. 9 Surprising Uses For Flour 1.

Flour plays an important role in the structure and texture of baked goods. If you have a deck of cards that has seen better days,... 3. Fight Acne. 2.