Dog walking. It's seen as a s**t job that is only for people who are under qualified or students, but doing it full time can make you bank.
Think about this, the avg rate is $20 per walk (which is roughly 30 minutes), that alone is double minimum wage in a lot of states, then factor in the fact that most dogs are walked twice a day, and now you're making $40 an hour. Do this for 6 hours and you make $240. Then there's the fact that many professionals walk 2-3 dogs at a time, sometimes even more, leading to $480-$720+ in a single day ($80-$120+ an hr). This is more money than a decent amount of jobs out there, even with a couple hours less than the typical working day
Sorry if any of the math is wrong, I'm tired af and did all of this in my head