I walk dogs and pet sit. SOmetimes people go out of town for a week and leave a houseful of critters. Its cheaper to have someone come and take care of them than to kennel them. Thats where i come in. I get paid per visit plus mileage. Last month, i made 113 dollars just on the mileage because of using the prius. i made that much, thats not just what i got paid for mileage. not bad at all.