So I know Mel says it isn't a SFG garden without the grid, but last year I tried something new. Instead of using string, I planted green onions thickly, and that sectioned off my garden. I thinnned the onions as I needed them, and this year, they overwintered. I thought this year I might try carrots around the edge of the garden, too, instead of devoting a whole square to them. Has anyone else had success with this?