Where I was taught to fly you were fined if they ever found the towbar attached without being attached to a part of your body
I like that idea. A and C - shall we implement that for yours?
I would second all of the comments above, especially about slope. A PA28 is fine to handle on your own on a flat hard surface, though you need to watch the wingtips like a hawk; but as soon as any slope is involved it's a pig. A second person to push at the wing root is very useful - even my 8-year-old makes a significant difference. [Be careful using children - he got injured pushing a 152 since when I've been a bit more circumspect. But good for him to learn.]
Tim