A gutter mirror will save you time by working from the ground. Don’t climb up and down a ladder with tools and a hose when you can make a handy gutter mirror to see what’s in them.
One way around this is to attach a small mirror to the top of a pole with duct tape. Or you may glue the mirror on or attach with Velcro pieces. In this video, I used mirrored plexiglass plastic with holes drilled for zip ties. The long, adjustable extension pole let’s me go to any height. This allows me to check for blockages in the gutter and downspouts.