You'd be better off just working as a day laborer. I did this an entire summer before. Talked to a landscaper, not a company/business, but just some dude who worked outta his truck and garage. He'd call me in the morning, and tell me where to show up. Usually i could walk, or get a ride to the location and he'd have 2-3 projects in the same neighborhood.

I'd work from like 8a-8pm and get paid $7/hr under the table. So basically $75 a day free and clear. While it doesn't sounds like a lot, doing it 6 days a week adds up, and no taxes. EVERY town large and small has someone doing this.