Maintaining a meticulous storage system for your collection has a number of benefits: easy accessibility, efficient inventory management, enhanced security, reduced handling damage, preservation of numismatic value, and an aesthetically pleasing display. In addition, the meticulous storage process also creates a comprehensive record that can be valuable in the event of a loss or other incident.
Storing your coins properly will also protect them from deterioration and oxidation. Ideally, your coin collecting storage supplies should be acid free and made from inert materials. This is particularly important because many common household items contain acids, such as those found in paper and cardboard, some types of wood, adhesives, and some forms of plastic (including PVC which can off-gas acidic fumes). Indirect contact with these chemicals can cause a wide range of discoloration issues including chemical reactions that etch or scratch the metal surfaces of your coins.
Moisture control is also a critical factor when storing your coins. High humidity levels can lead to corrosion, tarnishing, and rust. Likewise, you should keep your coins away from extreme temperature fluctuations as these can cause thermal shock.
The best home solution is to store your coins in a bedroom or den which tends to have a stable, comfortable temperature and low humidity. For a more formal solution, there are safes and storage containers that offer a high degree of air and moisture control. When choosing storage containers, look for those with tight seals and that have anti-corrosive properties.