Lots of web info on welding rod storage. Just about all the 60xx series of rods just require room temperature dry storage. The best and cheapest home storage for them is one of the old style refrigerators with the metal liner inside (newer will work also just not as durable). I think the perfect size for home hobby shops would be the little camper sized ones or office sized that are about 30" high. Stick in a 60 watt bulb and keep the door closed. After a several years in the old fridge with the light bulb they will sometimes get a little white moldy looking coating on them, but they are still good. They do make the silica gel packs that you can stick in with them and about once a month recondition the silical gel in your home oven (it takes about 12 hours to do this) but they keep just fine without that. Save the silica gel for your gun safe, it will do more good there.
I keep mine 6010 rods at home in a plastic box that welding rods (10# size) laying on top of my 350# Phoenix dry rod oven. It is slightly warm to the touch on top of it and they keep fine there. My Phoenix oven is set @350F for all the low hydrogen rods so they are nice and dry AND HOT. I have about 150# of 3/32 and 1/8 that I keep in at all time. Whenever I have a chance to find some cheap, I will usually pick up 2 or 3 50# boxes. You get them much cheaper buying them that way. Of couse the cheapest way is when someone gives them to you. The last job I worked on in the states, we had to swap out some brands of rods due to quality problems. THe project manager said I could have any of them I wanted since we were not able to return them and were just going to throw them in the trash. We had a few cans of all sizes so I took the 3/32 and 1/8 and let others have the big stuff. Brother gave me a couple cans of Lincoln 5P that he found abandoned on a pipe line right of way. You can pick up some good used grinder disc there too if you find a pipeline running close by. They usually use 9" x 1/8" wheels and toss them when they get to about 7" size which just fits my 7" grinder. As long as they havent been rained on they are good. Lots of those folks dont think about how mucha good grinding disc cost since company buys them and they use the best grade too. You do have to get to them before the backfill crew comes along or they go in the ditch.