How many kids do you currently have and how much do you charge? I would take a good look at your contract and make changes so you are happy. I charge 52 weeks per year regardless of the child's attendance, I also take 2 weeks paid vacation and 5 paid personal days plus major holidays. I always know what my income is each week and have enough time off to keep myself happy.
Save as much money as you can on food/supplies! I coupon heavily and the money saved is money in my pocket. Put money away for savings so when you lose a family you have cushion until you find a replacement.
Those are just a couple of things to think about, I'm sure more people will chime in with other ideas
