No, I don't mean I found something else for awesomely cheap on craigslist... I found a website that will do the searching for you and then send you an alert when someone posts what you are looking for.
Craigslist is searched on the hour or so and then an alert will get emailed that looks something like:
1 new post found for "girl 3T" (Category "(All For Sale)", Region "************")
This will be followed by a link to open that search in list-alert.com.
Of course, I have an email address specifically for craigslist stuff (I have my own domain, so I have TONS of email addresses), so now I just get to sit back and wait for my craigslist finds to come to me!!