Part-Time on the side Job.. Any Suggestions?

I am a full time student at a beauty institute 5 days a week.. With a toddler at home, she goes to daycare while i'm in school, and my bf and i will be getting a place together soon.. i am looking to earn some extra cash to help out with bills and home expenses.. Maybe making 300 dollars a month or so.. But i am hesitant about applying at local places (such as stores, restaurants, etc.) because all i'm looking for is an on the side job, i don't want to spend any more time away from my daughter and bf than i already do, so i need flexibility, something i don't have to invest more than 2 or 3 hours a day.. I was looking into maybe selling Mary Kay/Avon Products.. and i've also read about at home businesses.. Not sure how this all works.. any Positive input and ideas would be highly appreciated. Thanks in advance.