I want to go back to the main reason many women don't delegate enough: impossibly high standards. You may be able to do a particular task better than anyone else in your company. You may be able to manage the house better than your husband ever could. You can probably fold laundry straighter than the kids, and you likely can clean your house the way you like it better than any housekeeper.
But Superwoman does not exist. When you try to impersonate her, you aren't fooling anyone. Don't shoot yourself in the foot by expecting everyone to do things to some impossibly high standard. Accept the help you can get, and be grateful for it. Once you learn to relax a little bit, you'll be glad you did.