Hmm, what does your father-in-law like? Is he a tech-savvy guy? Maybe a new gadget or piece of technology would be a great gift. Or maybe he's a sports fan? A jersey from his favorite team would be sure to put a smile on his face. And, of course, don't forget the classic gift of a nice bottle of wine or scotch. Whichever direction you choose, just remember to choose a gift that reflects his interests and shows him how much you care.