DEAR ABBY: My mother moved in with my sister in California around 1993. After 20 years, I asked her what she wanted to do with her storage unit, which was still in Arizona. Long story short, she said: “Clear it out. I don’t even know what’s in there. Take whatever you want, keep the pictures and give the rest to Goodwill.” My sisters have the same recollection. Over the next three or four years, my sisters and I proceeded to do so. Mom has moved in with me now, at 80 years old, and says she may be moving out into ...