Networking works well. Write up a little one page advertisement of sorts. A few paragraphs about yourself and your good qualities - give references (ask first) - then hand them out to your neighbors and ask them if they know anyone looking for a babysitter. Your local grocery or hardware store may have a bulletin board - put a copy up there too.
A good babysitter is often hard to find - so put yourself out there and you will probably have more jobs than you can handle.
Good luck!!
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