I'm a bundle of nerves the entire day, checking every lock multiple times and taking a couple practice shots/ sharpening my machete
Wait for my husband/wife/family/friend to get home, so we can decided what to do together. We don't have any enemies per say, so we should be fine.
Make sure there is plenty of food in the house! That's all you really need to do.
Get all my guns loaded, make sure there's gas in my car, and prepare for my adventures.
Eh, what I do normally during any other day. I mean, the purge doesn't start till 7pm, and I usually make it home before then.