visit my grandparents more often

I have been kicking myself about this for several years. When I was little, I used to be at my grandparents house monthly, if not weekly. Then I went to college 8 hours away and for several years I only got to see them on Christmas. Now I live about an hour and a half away, and I can’t seem to make time in my schedule to visit them. I have to accept the fact that they are getting older and my grandfather’s health is starting to go downhill. I have visited twice this year, which is good, but I would like to be able to get down there at least once every other month for a weekend, if not more.