Q. I’m thinking of leaving some money in my will to the college I attended. When my husband was alive, we gave more to his alma mater than mine, and I want to make up for it. Should I let the school know about my plan?  Or is it enough to just mention the bequest in my will? It’s common for widows to want to continue giving to and supporting charities their husbands cared about. But as we grow mo…