In 2005, Jose and his wife, Jill, decided to retire early and hit the open road. They traded in their corporate jobs and two-story townhouse for a 40-foot motor home and set out to see America. "We wanted adventure," Jill says. "Our dream was to spend less and live more."

From California to South Carolina, they have seen a lot, but they're not ready to park their RV just yet. However, with skyrocketing fuel and food costs, Jill says their nest egg is shrinking more quickly than they expected and derailing their retirement plans.

"We want to know, can we continue living a life on the road?" she says. "We have really, really enjoyed the lifestyle, and we hope we can continue it."

Like many couples across the country, Jose says he and his wife are worried about their future. "We're scared with everything that's going on," he says. "We're saying, 'Jeez, do we have enough to continue this?'"