Why isn't there a shop vac attachment for cleaning gutters?
I made one myself, although admittedly it could be improved.
It's a U shap piece, and on the end is a piec about 4 inches wide 2 inches deep.
I can just turn on the shop vac, hook the end into the gutter, and just walk beneath the gutter cleaning it up.
A circular rubber piece that can go over the drain to suck debris out of it would also be nice.