C.J.
Hi C. -
I'm a mother of three - I have a four-year old, a two-year old, and a newborn - and I'm a successful freelance writer, who pulls in about $500 - $700 a month for my family. If you have any previous professional writing experience, you should check out www.freelancewriting.com or your local Craigslist.com for writing gigs.
If writing doesn't interest you and meeting new people does, you may want to consider checking out the many home-based businesses that are out there like Avon, Creative Memories, Mary Kay, etc. There are TONS of moms on Mamasource who do this kind of work successfully.
Finally, if you're up to it, you may want to consider doing home daycare for a couple of kids. Taking care of other people's kids is not for everyone, but I can tell you it's a lucrative business and you'll always have a demand for it. If you're interested, you should research the requirements for opening up a home daycare in the state of Florida as well as whatever county you're in.
Take care and blessings to you and yours!