T.O.
Hi A.,
There's all kinds of things you can do and here's a grouping of some:
Direct Sales - like the jewelry or beauty products or health products. It works great for some people, not for others. My suggestion here, is to do it if you love the product.
Service -- like the childcare someone suggested or you could take in laundry or typing (I typed papers on a Mac for kids with my first baby, sometimes I made $300/week, sometimes nothing). Also, sewing...my friend charged $20/hour for sewing jobs.
Profession -- what is it you did before you had a baby? I'm a work at home paralegal, but it took a lot of work to get my job home vs the office. If you did a good job at your ask your former employer if they'd use you as a consultant, and let you do work from home when they needed you.
Good luck!