About 20 years ago when I still only had 1 daughter and was a SAHM I cleaned house for a friend's elderly parents. It was all paid under the table. I was cheaper than a maid service (and somebody they knew) for them and for me, I was able to bring my daughter, who they loved, and make a little extra $ to help with the bills. There were some things I did every visit like dusting, vacuum, bathrooms and some things I did once in awhile like windows, tops of cabinets. I would rotate the extras so I did the same amount of work each time and kept the pay the same. It was also nice because there was flexibility on both ends if it needed to be a different day or time.
Keep your mind open and keep asking around. Good luck!