What's your plan B?

Assuming you see the writing on the wall, do you have plan B in place? If so how soon do you implement it before it hits you dead center? If you had plan B all along, were you burning the candle at both ends? What is a good plan B in this uncertain economy? What is a good link for plan B types? What works for you? What have you learn it doesn’t work? Someone may argue you don’t need to have plan B, please share your opinion. To Flutherville: I appreciate your input to shed some light on this matter.