That's the only exception - your family role might be 'host' or 'vegetable peeler' or 'table-setter' - I expect you to get on with it, make good choices, and not involve me ('meal-cooker'). If you are host, then actually, occasionally popping in to make sure I, too, have something nice to drink would be appropriate.
Oh god, yes, this. If you've offered to help and I've allocated you a task, I don't want to be micromanaging. Just get on with it. I really dont' care if you roll the napkins up, place them under the cutlery, or do some fancy swan in a wine glass glares at DH.
Also, after 20 years together, you'd think he knows what I care about and what I don't. I DO care that napkins are on the table. I don't care HOW they are on the table.