I have the same problem as you . My parents have usually stayed at my house to pet sit but as they live out of town for part of the year I don't know what to do either. How about checking out the pet sitters that come to your house to feed and spend time with your pet. Leaving him in his own environment would be less stressful. I'm in the Toronto area but can't recommend any as I have not used their services yet. ( I don't travel much anymore )