Tantek points to John's post on a philosophy that echoes one of mine:

I can get another driver's license. I have another camera. I have more money. I can buy more trashy, frosted-pink lipstick.

I'll consider the loss to be part of my optimism tax. I sporadically pay this fee (when people take advantage of my trust in goodness) in exchange for optimistic freedom.

I would be less at-risk if I concentrated more on the negatives. "What if _____ happens?" But it's not worth it. The cost to my quality of life (by worrying more) is far more expensive than the cost of losing some stuff.

And it would only take a bit of work to fit this to my Christian worldview, I think.