This is my first tip post, and I hope it is put to good use. First of all, the goal in this tip, is money. Honestly, I like to have a certain amount of money at least in my bank, (A bit of an perfectionist thing), and then I like to make that amount go up and up as my family get more and more promotions. So the trick is, to make them as happy as possible, and you do that by praising them for doing a bunch of stuff, not all the time, cause then you will be spoiling them. And when the kids do stuff like:

Drawing on the wall
Playing in the toilet
Jumping on the bed
Throwing rocks
Banging dishes

Be sure to either drag them back then see what they do again (playing, going outside, etc) then leave them be, or scold them ONCE, otherwise it will go too far. What I like to do is after I scold them, when they go to do something else (playing blah blah blah) I like to praise them ONCE to cancel out the scolding. So basically, for the parents, PAY CLOSE ATTENTION TO THEM, and praise them, not all the time, but praise them sparingly when they work, and you will see that they will continue to work without you dragging them to their working place. So praise sparingly, then you can focus on the kids.