Hiring a house sitter kills two birds with one stone. Someone will be watching over your home and caring for your pet while you're away. Your pet's routine won't be disrupted much, and it'll have the comfort of a familiar setting while you're away. It won't experience the stress it might feel at a boarding facility.
The downside to a house sitter is the cost. While some house sitters offer their services in exchange for rent-free living, others charge a fee. Another potential pitfall is that you simply might not feel uncomfortable having someone live in your house while you're away. Most professional house sitters, however, can offer you some references in order to guarantee your house and pet will be safe.