Always always bring a carry on only even if you intend on gate checking it. Checking bags on a non rev is risky. Unless you don't mind being separated from that bag for a few days, just go the carry on route.
My wife is a pro at non revving, and here is why:
She has no strict timeline.
She doesn't care if she gets to her destination via 4 legs.
She doesn't care if she ends up in Tampa vs. Orlando.
She only packs carry on.
If she has to turn around at the airport and come back the next day, then it isn't a deal breaker.
If she doesn't sit near the kids (mine are 7 and up) it also isn't a big deal. They all know the plan.

If you NEED to get somewhere on time, buy a ticket. This is why in a few cases, we have bought a revenue ticket to and then nonrevved back. These days, with loads hovering around 90 percent, playing the nonrev game is not easy.