Now that you're a parent things have changed. You're probably back at your old job, paying enormous sums for childcare, and coming home every night to your "second job" of taking care of the kids. Or, you're now a full-time parent with no second income and discovering it's difficult financially. Whatever the reason, working for yourself is sounding like a better option these days. But what kind of business can you start when you're a parent? The answer is plenty, and here's a look at just a few of them.