Between shoots they get a quick bore clean out, bore snake or similar and a wipe down barrel/action/exterior with G96 gun Treatment. This is the general procedure throughout bird season. When they are going to be put away for a while post-season, a thorough bore & action clean up and again the G96 wipe down. Then they go into a Cannon gun safe with a Golden Rod heating element. Never had any trouble except one time a Golden Rod failed in a really humid environment. Got a bit of surface rust on one gun at the back of the safe. Now I routinely check the Golden Rods every week or two just to make sure they are warm. If guns get handled, they get wiped before going back into the safe. That rust deal was pre-G96 days too; back then I was using a generic gun oil.
As for the nightstand "we don't call 911" firearms. They get checked and wiped about once every month in their resting places.