You were there when your best friend met her future husband on the college ski trip to Steamboat Springs. You’ve heard the story of your parents’ first date, a Cubs game, about 26 times. For a first- (or 26th-) anniversary gift — or an engagement or wedding present — commemorate that unforgettable first date: Get a trail map, a Cubs pennant, or a menu or a matchbook from the restaurant and frame it. Now they will remember you forever as well.