Is posting a baby sitter wanted sign on your window the best way to find the help you need? You may think so. You should think twice though. There are difficulties and disadvantages to looking for a sitter on your own. Looking for Your Own Sitter: Finding a sitter may seem like an easy task. This may make you feel like you are in better control of your options. You will also be cutting the cost of fees that sitter agencies and services charge. The advantages of performing your own search may be tempting. There are however, some disadvantages that you should be aware of.