Like many young people, Jessica wants to travel the globe. Unlike most of them, this 25-year-old is doing it  41 .She and her husband have spent the last two years traveling the world, stopping everywhere from Paris to Singapore. It might sound like one long, expensive  42 , but the couple has an unusual way to make their travel  43 .

They’re part of a new form of the  44  economy: an online group of house sitters. Throughout their no-cost stays in  45  homes, they feed pets and water plants in the homeowner’s  46 .

It’s not all sightseeing. The two travelers carefully  47  their trips, scheduling their days around the pets that are sometimes difficult to  48 . But house sitting also offers a level of  49  they can’t find in a hotel. “It’s like  50  at a friend’s house,” Jessica says.

The couple has a high  51  rate in getting accepted as house sitters and they always go beyond the homeowner’s  52 . For Jessica, that means  53  plenty of pictures of happy pets, keeping the house  54  and leaving a nice small gift before heading to the next house. “You want to make the homeowner feel that they made the right  55 ,”she says.