Many years ago when my three kids were little, I ran away from home for one night. I was getting 'over-emotional' from never sleeping a night without interruptions, from mountains of diapers (remember, this was a long time ago), from little ones pulling on my pants legs. DH handed me the car keys and told me to take some time for myself. (I'm sure it was survival for him as I really was becoming a 'not very nice person'. I ran away to Des Moines (about 2 hours from where we lived) and stayed all night in a motel. It was the best thing I could have ever done! By the time I got up the next morning I was missing my family like crazy and couldn't wait to get home.
I think it was the idea that I COULD get away if I had to that made this the only run-away I ever did. After that trip, I never needed to disappear again.
I recommend it highly.