Where do I put my gun?
Put your gun where you can get to it quickly, combos in a locked box are nice but stress where someone has a knife to your wife's throat may cause you to forget those numbers.
If you don't have in on you put it where you can get it if you answer the door, someone breaks in while watching TV. You are a sleep and a burglar breaks in its dark are you going to turn the lights on to see the combination to get your gun, put it in a nightstand drawer, under the mattress edge on your side of the bed, in just far enough to not fall on the floor.
Train everyone in the house firearm safety and treat every gun as being loaded.
I heard of a judge that had loaded guns on just about every table in the house plus cameras and a 10 foot high fence around his home. He put a lot of bad guys away!