I just bought a Pardner Protector 12ga pump strictly for HD. Except for the synthetic stock, it looks and feels exactly like the 870 that rode in my squad car when I was an LEO. I see no need to modify it in any way for its intended use - the longest possible shot inside my house is only about 12 feet. No flashlight, laser, or other fancy sights needed for that. And if 6 rounds of 00 buckshot don't take care of business, I'm screwed anyway.
"The great object is, that every man be armed. Everyone who is able may have a gun." - Patrick Henry