I do the same as Don. Feed the day before, clean tubs and water the day I go and double check everyone. As soon as I get back, check everyone and get them back on to a feeding schedule (if I was gone long enough to have it thrown off). I do have babies, and a few go 10+ days at a time not eating on their own, so I wouldn't be too concerned with it, unless you are going to be gone longer than that.
I would want to have someone at least check on your house just to make sure no safety issues arise while you are gone.