THREE HINTS FROM ONE READER Dear Heloise: First, I loved your hint about chocolate bloom! I was working at a Veterans Affairs building that day and took the paper with me. I was there all day in the reception area and had the paper folded, so your heading was at the top. Everybody kept asking, “What is chocolate bloom?” It was a wonderful conversation-starter that made my day run smoothly, so I wanted to personally thank you! Next, I have three great hints from the mother of a rambunctious autistic adolescent with developmental disabilities: How to safely remove a lightbulb that has broken whi…