mowing lawns around the neighborhood, offering to clean out garages and offering to clean flowerbeds, etc...just start knocking on doors - take a paper and pen with you and schedule people in and if you are responsible enough, people will have you come back and you can do it all summer
make carrots for baby booper poppity pippitiy American girlies.
shovel snow - lol because it is almost summer. {So sell shaved ice.}
chores at home
