Not sure how handy you are with a chainsaw or how you feel about heights. But there are lots of tree limbs/trees on people's properties and a lot of people are too old to take care of them themselves. Also gutter cleaning, roof shoveling, general lawn care (think aeration, over seeding, fertilizer etc) aeration can easily be $200+ for a few hours hard work. Some of these might be more difficult to get business for up north, but I'm sure a combination of things could start to build up a group of regular customers