Bookkeeping Service - For businesses or on a personal level.  You can also consult on a personal level on budget planning, etc.

Childcare - For this you need to make sure you comply with local and state government requirements. In Texas you can check out: http://www.dfps.state.tx.us/child_care/about_child_care_licensing/

Children's Party Planner - Busy moms need help!  If you are great with kids and have fun ideas this could be for you.

Computer Tutor - Say that five times fast.  No, seriously, if you are great with computers this may be a perfect job for you, whether one on one or teaching groups.

Direct Sales - These are companies like Avon, Pampered Chef, Tupperware, Partylite, and those "fun" parties too.  If you are interested in selling makeup check out http://www.makeuptalk.com

Editing Service - If you are a grammar master this could be an excellent job for you.

Errand Service - Great for a mom with school aged or older children.

Freelance Writer - Many places are looking for writers to name a few check out www.about.com or www.bellaonline.com

Graphic Designer - Design logos and banner ads for online businesses.

House Cleaning - Another great idea for someone with older children if you don't want to have to worry about daycare.

House Sitter - You can decide if you are a drop in sitter or someone who actually stays while the person is out of town.

Pet Sitter - Whether it's a daily walk while the fur baby parents are at work or for out of town caretaking.

Photographer - This could be a great freelance business in the way of setting our own hours.  One can also sell their photos at http://www.dreamstime.com or www.istockphoto.com 

Pooper Scooper - This could go excellent with the pet sitter business if you have the stomach for it.

Private Investigator - Must be licensed in the State of Texas for more info: http://www.state.tx.us/category.jsp?language=eng&categoryId=9.12

Professional Organizer - Which all the great shows about this, it seems lots of people want it and don't know or have the time to do it,  this might just be a great business.

Wedding Planner - If you have an attention to detail and would love to be behind the scenes of the "storybook" then this might be a great business for you.

More ideas coming soon!