I would try a few options, in order of severity:

1. Shove 40+ hours/week into finding a new job in my sector (hospitality) locally,
2. Expand my search to include jobs "below" my qualifications, and
3. Expand my search regionally, then nationally, then internationally.

In any case, I would put much more urgent effort into my entrepreneurial projects and work to create money out of nothing. I might get up earlier and stay up later. I'd probably pull the plug on distractions like TV, so that my waking hours would be more productive hours.
I am fortunate enough to have a lifestyle from which I could trim a lot of fat, if I had too. Again, in order of severity:

1. Stop all dining out, including lattes and alcohol,
2. Exchange movies and expensive leisure activities for productive uses of time,
3. Cancel monthly subscriptions, memberships, fees, and donations,
4. Change grocery habits to include longer-lasting bulk staples,
5. Walk and use more public transportation,
6. eBay and pawn my stuff, and
7. Consider moving to a cheaper town or in with my family.

Fortunately, I own more tangible assets than paper. If the economy were to turn completely upside down, the only worthwhile currencies might be baked beans and bullets. Even cash (practically a treasury IOU) is worth less in a crisis than shelter, food, water, and safety.

Let's hope it never comes to that.