DEAR MISS MANNERS: What’s the “right” time to throw away greeting cards? When friends or family send birthday or other greeting cards, I generally read them and then throw them away, to my husband’s consternation. My view is that I can throw them away now, or stick them in a box and throw them away in 20 years. GENTLE READER: True. But if it bothers your husband, compromise by throwing them away now — but out of his sight. *** (Please send your questions to Miss Manners at her website, www.missmanners.com; to her email, dearmissmanners@gmail.com; or through postal mail to Miss Manners, Andrew…