Side gigs

I'm potentially looking at starting some side gigs to try and earn extra money as I have gained some unexpected free time at the weekends.

Something like dog walking, maybe painting, clean up jobs, power washing, stuff like that.

I am aware that summer season is almost finished and outside jobs may be tricky.

Would anyone have a clue if there is a demand for this and how could I go about it?

I know of all the silly ads on FB :)