Nomad RVs converted it into a premium mobile home, and it's now for sale—more information about ... and a spacious headliner shelf can be used for storage in the front part of the van.

"We have gotten really into taking our camper to my parents' house and setting up [outside]" says Ben. "When everybody's there, it's just so crowded," explains Erin of their unconventional lodging.

Purchasing a largely self-sustaining off-grid camper is one such option. Yes, it's a bit of a gamble, because the apocalypse you're prepping for may make it impossible to live above ground.