That's what kids are for, especially sons.
My father's always had me lift his amp with him. I insisted when I was a kid(wanted to prove my strength, even though he was just making a show of letting me help), and now it's just nice to lend a hand when I'm around.
He still doesn't trust me with his acoustic bass though. Figures.
Maybe I do need some new kids. Wait... there has to be a better way.
The new amps that they make these days weigh no more than a vacuum cleaner, I think I'll be trading in soon. Meanwhile, I might just enjoy playing something safer, like a harmonica.