Ms. Pettigrew is an etiquette expert specializing in weddings. Read more
what do yo give your husband on 45jrs of marriage
After 45 years of marriage you are best qualified to know what to give your husband, as you know him best of everyone in the world.
The 45th anniversary is the sapphire anniversary, so you can wrap his present in blue, or do the table decorations etc in blue (but he probably wouldn't notice).
Best advice would be to get him something you know he really wants, but he won't buy it for himself. Congratulations and good luck.