I am always interested in Gold/Silver Ratio news & thoughts, Staker Stacker - @ssjsasha. One may find a sealing idea, with Federal Express, United Parcel Service, US Postal Service, or rival companies. Harbor Freight has some very durable, metal, airtight, military type ammo cans, with a capacity about a monster box size, for under $20 (USD). Silica get packets, sometimes found in new shoes, for moisture control.
RE: I need advice from my fellow metal stackers