I know this flies in the face of popular fashion, but I instruct and obey Cooper's second rule: Never point the muzzle at anything you don't wanna destroy.
Unless you're highly (and frequently) trained, keep a light handy and in your hand.
Enough ambient light. You will be point shooting and not sighting in at in home distances. Sight means nothing.
Do you have a light on your rifle? If not, get one.
You'll give away your location if you do. LOLWhy don't people just turn the lights on?
Seriously, the idea is to get the person to leave your house, not ambush him and do a mag dump in his chest. I can't walk through my house without sequentially turning on lights as I go starting with a lamp next to my bed.
Weapon lights are cool looking though.