Honestly, I wouldn't do a whole lot. I live in a poor neighborhood in the middle of nowhere, so there's nothing for me to really loot. Most likely, I'd have to defend my house from all the damn crackheads around here.

Under the circumstances in which the purge is real, I'd build a cinder-block wall around my property and top it with razor wire. During purge night, I'd stay locked in my home with my family and my guns. Any invaders would be shot on sight. Realistically, that's about it.