"I'd rather be spending time with you."
Yes, there's a "Save the Library" march tonight, which you must attend because your town is closing branches right and left. And yes, your husband understands the gravity of the situation and has even brought up supportive points like: "Libraries aren't just about books! They have free DVDs!" But as you race out the door to fight for universal literacy (and free DVDs!), or to meet up with your old friend from England, or to make the last-minute meeting at the office, letting your significant somebody know that he is preferable to any of your causes, obligations or goals not only keeps him from feeling like just another check-off on your to-do list, but also affirms that he is item number one on your to-adore list.