Fruit flies may be small, but they can become a persistent problem if ignored. A homemade trap using red wine vinegar or apple cider vinegar covered with plastic wrap and small entry holes provides an effective way to capture many adult flies. Adding a drop of dish soap can improve trapping success. Nevertheless, the key to long-term control is preventing breeding by removing overripe produce, cleaning food residues, maintaining sanitary kitchens, and emptying waste regularly. When combined with good household hygiene, this simple vinegar trap becomes an excellent example of how practical science can solve everyday problems safely and effectively.