Plastic convenient bags in life clever use of daily life are most afraid to wash the tea ah, drinking cup. Because the above the dirt is hard to remove. Now I tell everybody a cleaning tips: 1. The ordinary plastic convenient bags rub a rub, knead wrinkled wet water reserve. 2. Then the need to wash the tea or a cup or wet too. 3. Then prepare wet plastic back and forth wipe tea or a cup. This soon can remove dirt. You can also put some toothpaste effect is better!