Part of it is the nature of the threat I face, in my town, my neighborhood. Here the dangerous time is daytime. When the folks in my neighborhood head to work, there isn't one house in five that's occupied. The last few burglaries have been daylight ones. I spend a lot of time home during the week and have the house basically open. My solution was to have a SG at either end of the house and a handgun or two positioned where I could slide one in my back pocket when answering the door. That way I wouldn't be without a firearm if I was in the kitchen when the bad guys come through the door.
The bedroom does have the heavy firepower inside, but the odds are low that I'll be there during daylight. Hence, pre-positioning firearms in other parts of the house where I will be during daytime.
I forgot to mention - no children and no wife. One dog..
Thinking it through a bit, if kids were in the house, I'd have to devise some different methods.
Side note - most of the homes in the south do contain firearms and ours were stored in racks on the wall. Education was the key in keeping kids and guns safe. As Ayoob points out, you can't childproof your guns, but you can gun proof your kids.
Closet concealment is pretty simple to show, hard to write about. The way I do it, you have to know it's there to access it. Won't work for short folks either. (this just occured to me) If you open the closet door and look up, there is about 15 inches of wall that comes down to form the top of the door. On the opposite side is dead space - can't really use it for anything and it is a dandy place to store a hand gun Mine in the other end of the house contains a washer/dryer, so a 12 ga fits nicely.
HTH