One of the things I've learned from riding herd at Barb's is that you need to assign SPECIFICS to people. Barb has a tendency to wring her hands, bemoaning how much stuff needs to be done, which doesn't accomplish anything. I've learned that stepping in and saying "You - go scrub the hot tub. You - take the trash out. You - sweep the floor" is much more effective than anything else.
Mowgli managed to make her hubbie become a chef by starting him out as a sous chef. He had no interest in helping cook dinner at all, and she eventually talked him into helping by focusing on his OCD - if she needed vegetables diced to a quarter-inch, she'd leave it to him and the veggies would be perfect. Now, he's actually cooking dinner and liking it.