I keep my campden tabs in a ziploc baggie with the rest of my brew consumables, more or less a cool, dry place. Otherwise known as a 5 gallon bucket in the spare bedroom.
Drinking Oaked Wee heavy, The Kaiser clone, Graff, , Sour Cranberry Ale
Carbing/Aging Westy 12 (2013),
In the bucket Chocolate stout, Westy 12 (new world)
On Deck Pumpkin Ale 2014, FBS clone, Port oaked amber, Old Rasputin Clone, 15% RIS