Things You'll Need
Instructions
Clean the marbles before storing them. Place the marbles gently in a large bowl. Fill the bowl with warm water. Drop in two or three denture tablets. Soak the marbles for roughly 30 minutes. Rinse them thoroughly with lukewarm water and dry them completely with a soft cloth or towel.
Open the marble case. Place the marbles securely in the slots inside the case. Use one slot for each marble to avoid the marbles colliding with one another, which causes chips and scratches.
Close the case securely. Keep the case fully closed when the marbles aren't in use to keep dust and dirt from accumulating on them.
Keep the case upright at all times, even if using a "briefcase" case that encloses the marbles. This prevents the marbles from falling out of their slots and banging into each other.
Store the marbles at room temperature. Extreme hot or cold temperatures warp the marbles, lessening their overall value.