You could hire a reputable Pet Sitter. Check out Pet Sitters International website to find one in your area:
www.petsit.com. Interview them, ask a lot of questions and get lots of references.
There are a lot of wonderful Pet Sitters around and some not so great ones so don't go by who is the cheapest. Some Vets will also refer sitters.
It is a great alternative to boarding.
Maybe you could find a pet friendly hotel to stay in...
I'm with Renee...."what's a vacation?"
Pam