i'm very lucky because DH is an artist also so he understands how the passion can get in the way of other things.
when i'm in the zone he steps up and keeps day to day life running in our home and with our family and i do the same for him when he's in the zone.
i do try to run my artistic life like a full time job with set hours monday thru friday so that i can spend the weekend with my family.
for the most part this has worked very well and its rare that i have to work over the weekend on my art.