I have young kids, too, 7 and 5 (5 y/o isn't in Kindy yet), and an internet addiction, so I'd say I average an hour a day...sometimes more, sometimes I don't even open the door to that room.
I've found that I'm much more likely to knit, since I can stay involved with the family, or watch TV, etc.. I need to find myself a good lap (quilting) project.